Searching For My Search Function

At the end of November, the folks over in the Security forum were kind enough to walk me through a huge problem I was having. My computer has never been better except for one small thing. my "search" function doesn't work. The little doggy is there and if I enter something and then ask it to search files and folders (or anything for that matter), it goes off to search and then nothing happens. Eventually I get the "Program not Responding" window and when I close it, my desktop blinks off for a second and then my Norton systray button is missing.It's weird and I'm sure I deleted something inadvertently while I was getting rid of that terrible trojan. I was just wondering if someone had a suggestion so that I could restore that function. If not, I'll leave it alone because I'm just happy to have my computer back to normal almost. I thought I was going to have to throw it away until those guys saved it for me.