I also have W7 64bit without problems. Like Spud said, they haven't developed Flash for 64 bit yet but I just run the 32bit browser and all is ok.
I also have have old programs, like MicroGrafx Picture Publisher, which run with no problems. If you have old programs that wont run choose compatibility mode if they've run in previous versions of Windows.
I had W7 since it first came out and what I will say is that all the updates have installed no problem at all, something I can't say for Vista.
Millenium was the worse OS they ever brought out and probably XP the best so far but W7 will hopefully give it a run for it's money.
Sorry Butler, none of my post will help with your problem. I did look at the reviews for the EZ Grabber on the Amazon site and they were mixed.