Sounds like your software

Sounds like your software is incompatible with 64-bit. Go to the product’s support page and see if you can upload 64-bit supported drivers. Also, go to MS’ Vista support software compatibility page and see if 64-bit Vista will work with the version you’re using. If so, download the drivers and you should be fine. If not, try to run the software in Vista’s compatibility mode at 32-bit. It may or may not work. Getting updated drivers is your best bet.