support page http://support.dell.com/support/topics/global.aspx/support/dsn/en/document?c=us&docid=5E83716B1A9646FFB7BF43C864AA84A8&journalid=2170D1C05ECD11DB8C89B5EEE13E1C35&l=en&s=gen#1 lists Vista - but when I downloaded the driver it has a directory win_2kxp and no Vista drivers. I'm hoping a Vista 64 bit driver will work on my Win08 64 bit system. I just purchased a new T300 and installed Win08.

The Vista Driver installer is x86 - I need 64 bit:

Welcome to the InstallShield Wizard for x86 Vista HBP System Driver (v1.0)

The InstallShield Wizard(TM) will help install x86 Vista HBP System Driver (v1.0) on your computer.   To continue, click Next.