I recently installed Office 2010 Professional. I lost associations to .pps files, lots of which I get in emails as you probably all doo. I went to associate pps files to the new PowerPoint 2010 but when I hit browse to choose the program, it would not accept my choice. I chose powerpoint and when I returned to the association screen, no powerpoint. Instead it was associated with something else. No matter what I do, the file open with dialog will not honor my selection of PowerPoint 2010 even though I select the EXE. How can I fix this? I'm running Windows 7 Ultimate 32 bit.