Win 7 questionj

I just went tp Windows 7 after years working with XP. I set up QB and it works fine, EXCEPT, Every so often a message pops up that says Internet Explorer 8 is not configured correctly. By trial & error (many errors) I found that if I go into "turn windows features on or off" and turn off IE8, reboot, go back into features and turn IE8 back on and reboot again. That will satisfy QB for a day or so, then the message comes back up. Maddening to say the least. Anybody have a clue as to what's going on here? Suggestion and comments welcome. Tnx, Dusty