Windows 7 64-bit is a very new operating system, and not all of the third-party drivers are fully 32-bit compatible and probably won't be until Service Pack 1 is released.
Until then, I'd test drive any program on it before making an financial commitment.
Thank you. I am learning enough on this forum to perhaps keep PE8.
I own PPRO... just have a camera that spits out MPEG2 files.
Need a new camera.. but that is a whole other discussion!
I run PSE7/PRE7 on W7 Ultimate 64-bit and, for me, it's working great.
I run a dual boot system (with Vista 32-bit) to maintain incompatible applications. And today I removed the PSE/PRE combo from Vista, being quite satisfied with it's W7 performance.
Insanity is hereditary, you get it from your children