In the Google 'web search' the Yahoo icon appears next to the URL (in the address bar) the other searches are unaffected by this change and they still keep the Google 'G' by the URL. I have tried reinstalling IE7 and it didn't fix it. Does anybody kow how to fix this? Or at least, is it harmful to my computer? Here's a picture of it: http://img408.imageshack.us/img408/1430/20070731131228jd9.jpg

This is not harmful, although I'm sure the folks at Google wouldn't appreciate it! Try clearing your cache... check the delete offline content box as well.