I would suggest you look inot upgrading to either Pinnacle Liquid Edition Pro or the Matrox RTX100.
Both are excellent choices. I'm a big fan of both applications. They are both very powerful, stable and loaded with features. Give us a call on Monday 800 323-2325, and we'll go over your computer specs and find out what's the best fit for you.
Videoguys.com / The Electronic Mailbox 800 323-2325
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