I have been running Windows 7 Ultimate (64bit) on my computer since December '10 and installed sp1 in February and had noticed no problems. I also have been using Microsoft Office 2007 Ultimate since I first installed the operating system. Now, I cannot use any of my Office Applications. I get an error message stating that "the operating system is not presently configured to run the program". I can't really recall using any of the programs since I installed the service pack. I have run the microsoft genuine software test application and my software checks out fine. Any ideas?