Parties interested in meeting with management may contact Virginia Dadey, Investor Relations, to make arrangements. The annual AeA conference provides a forum for executives from technology companies and hundreds of investors to connect for discussions on corporate strategies, technology, market trends, and investment criteria. For a complete schedule, or to register to attend the conference, please visit www.aeanet.org/financialservices.

About Arrowhead Research Corporation

Arrowhead Research Corporation (www.arrowheadresearch.com) (NASDAQ:ARWR) is a publicly traded nanotechnology company commercializing new technologies in the areas of life sciences, electronics, and energy. Arrowhead is building value for shareholders through the progress of majority owned subsidiaries. Currently, Arrowhead has four subsidiaries commercializing nanotech products and applications and investments in two minority-owned subsidiaries.

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995:

This news release contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These statements are based upon our current expectations and speak only as of the date hereof. Our actual results may differ materially and adversely from those expressed in any forward-looking statements as a result of various factors and uncertainties, including the future success of our scientific studies, our ability to successfully develop products, rapid technological change in our markets, changes in demand for our future products, legislative, regulatory and competitive developments, the financial resources available to us, and general economic conditions. Arrowhead Research Corporation's Annual Report on Form 10-K and 10-K/A, recent and forthcoming Quarterly Reports on Form 10-Q and 10-Q/A, recent Current Reports on Forms 8-K and 8-K/A, our Registration Statements on Form S-3, and other SEC filings discuss some of the important risk factors that may affect our business, results of operations and financial condition. We undertake no obligation to revise or update publicly any forward-looking statements for any reason.

SOURCE: Arrowhead Research Corporation

Arrowhead Research Corporation 
Virginia Dadey, 212-541-3707 
vdadey@arrowres.com

Since Gerber's offer was accepted by holders of more than 90% of Virtek`s common shares, Gerber is now exercising its right under the compulsory acquisition provisions of the Business Corporations Act (Ontario) to acquire all outstanding common shares not already beneficially owned by it on the basis of $1.05 cash per common share. Further details are provided in Gerber's Notice of Compulsory Acquisition, which will be made available on SEDAR at www.sedar.com.

    <<

    >>

Upon completion of the compulsory acquisition, Gerber intends to de-list the Common Shares from the Toronto Stock Exchange and to cause Virtek to cease to be a reporting issuer.

    <<

    About Virtek Vision International Inc.
    >>

Virtek, based in Waterloo, Ontario, Canada is a leading provider of high value industrial laser solutions serving the needs of the global manufacturing sector by providing templating, inspection, marking and engraving products. Virtek serves customers in the aerospace, pre-fabricated construction, transportation, metalworking, tool and die and mold making industries worldwide. Gerber and Virtek have common customers in these industries. The majority of Virtek's sales are in North America and Europe.

    <<

    About Gerber Scientific, Inc.
    >>

Gerber Scientific, Inc. (http://www.gerberscientific.com) is a leading international supplier of sophisticated automated manufacturing systems for sign making, specialty graphics and packaging, apparel and flexible materials, and ophthalmic lens processing. Headquartered in South Windsor, Connecticut, the company operates through four businesses: Gerber Scientific Products and Spandex Ltd., Gerber Technology, and Gerber Coburn.

    <<

    Forward-looking Statements:

    >>

This news release contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. The forward-looking statements contained in this news release involve risks and uncertainties regarding the Company's expected financial condition, results of operations and cash flows. For information identifying other important economic, political, regulatory, legal, technological, competitive and other uncertainties, readers are referred to the Company's filings with the Securities and Exchange Commission, including but not limited to, the information included in Gerber Scientific's Annual Report on Form 10-K for the fiscal year ended April 30, 2008, which outlines certain important risks regarding the Company's forward-looking statements, as well as information included in subsequently filed Quarterly Reports on Form 10-Q and Current Reports on Form 8-K. Actual future results or events may differ materially from these forward-looking statements. The forward-looking statements contained in this release are made as of the date of this release and the Company expressly disclaims any obligation to update any of these forward-looking statements, except as required by law.

    <<





    >>

SOURCE: Gerber Scientific Inc.

Mike Elia, +1-860-644-1551, for Gerber Scientific, Inc. Web Site:
http://www.gerberscientific.com

The Board of Directors of Virtek unanimously supports the Gerber offer and recommends to Virtek's shareholders that they accept it. Gerber's take-over bid circular containing details of the transaction (including details on how to tender shares to the offer) was mailed to Virtek's shareholders on September 15, 2008, along with a directors' circular of Virtek. The acquisition is fully financed and will be funded through Gerber's existing $125 million line of credit.

    <<

    >>

Gerber's offer is subject to various conditions that must be satisfied prior to take-up and payment by Gerber, including, but not limited to, the valid deposit of not less than 66-2/3% of the outstanding common shares of Virtek (on a fully diluted basis). Unless 66-2/3% of Virtek's common shares (on a fully diluted basis) are tendered, Gerber's offer will expire and no transaction with Gerber will occur.

    <<

    >>

On October 9, 2008, Jaguar Financial Corporation, which according to public filings owns approximately 19.9% of Virtek's outstanding common shares, announced that it would tender its shares to the Gerber offer and would not be making its own offer for Virtek.

    <<

    >>

Enquiries concerning the Gerber offer should be directed to Gerber's information agent Kingsdale Shareholder Services Inc., toll free at 1-800-775-1986.

    <<


    About Gerber Scientific, Inc.

    >>

Gerber Scientific, Inc. (http://www.gerberscientific.com) is a leading international supplier of sophisticated automated manufacturing systems for sign making, specialty graphics and packaging, apparel and flexible materials, and ophthalmic lens processing. Headquartered in South Windsor, Connecticut, the company operates through four businesses: Gerber Scientific Products and Spandex Ltd., Gerber Technology, and Gerber Coburn.

    <<


    Forward-looking Statements:

    >>

This news release contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. The forward-looking statements contained in this news release involve risks and uncertainties regarding the Company's expected financial condition, results of operations and cash flows. For information identifying other important economic, political, regulatory, legal, technological, competitive and other uncertainties, readers are referred to the Company's filings with the Securities and Exchange Commission, including but not limited to, the information included in Gerber Scientific's Annual Report on Form 10-K for the fiscal year ended April 30, 2008, which outlines certain important risks regarding the Company's forward-looking statements, as well as information included in subsequently filed Quarterly Reports on Form 10-Q and Current Reports on Form 8-K. Actual future results or events may differ materially from these forward-looking statements. The forward-looking statements contained in this release are made as of the date of this release and the Company expressly disclaims any obligation to update any of these forward-looking statements, except as required by law.

    <<




    >>

SOURCE: Gerber Scientific, Inc.

Mike Elia for Gerber Scientific, Inc., +1-860-644-1551 Web Site:
http://www.gerberscientific.com