I've tried a few times recently to overclock the default Hz on my IMO 1.1a. It's been successful in the past, but for some reason every time I do it now (win7 64bit) the mouse just switches off and won't come back on until I change the USB port. Can't get it to work! I'm following the guides to the letter etc... Has anyone else had this problem and found a fix?

I have had it working on win7 64bit but it was a different install, so could it be a driver issue? Motherboard? Intellipoint? :S

Cheers in advance!