I have Win7 x64, Office 2007, and a few times a month, the computer seems to go into a cycle where all Office programs (Word, Excel, Outlook, etc.) open for either a short while or not at all, and continually freeze and crash and reboot. The only thing that fixes it is a reboot, and then the system works fine. I have had this problem since Vista, and 7 doesn't seem to have fixed it either. Any of you experience similar issues?