i just installed a fresh copy of windows 7 ultimate x64 rtm it installed okay and ran just fine, but practically nothing runs. firefox refuses to start. google chrome won't install. utorrent won't load. ccleaner won't load. pretty much anything that isn't 64-bit isn't working, which is basically everything. oh, and half the time the control panel won't work. and when i right click the desktop and click personalize, it sits there for a minute or two and then says server execution failed. any ideas? i've tried reinstalling things, rebooting, using system restore...nothing seems to want to work.