Google Sidebar doesn't work anymore

I installed the WinXP SP2 patch on my work PC and all of a sudden my Google Sidebar doesn't work. Thats crap! I use this every day at work for the little scratch pad and for the RSS news feeds that I've set up. Now that it doesn't work, I dunno what I'm going to do now since I've gotten so used to it. I've tried everything I can think of short of reloading my work PC but that in itself is quite a pain. MAN!!!