Id bet its a program thats slowing you down (If you haven't changed any windows 7 settings)
Don't assume anything when using a beta operating system. You never know what will work and what won't. The only way to know is to try. Drivers
should be avilable from hp: Product search results
I don't know exactly which model you have. You'll want to try the Vista drivers for quick launch buttons.. if you have Windows 7 64-bit, youll want the Vista 64-bit drivers. If you have Windows 7 32-bit, youll want the Vista 32-bit drivers.
32-bit = x86
64-bit = x64