Well i switched to Antivir because i was having problems with Avast! It was working fine, but one day the icons didnt appear in the taskbar. The main program was still there, but the icons were missing. I also dont think that the active scanning was on and when i looked at the taskbar, avast's updater was always on (as if it were stuck or something). I read a post about activating the ashDisp.exe program, but when i searched for the file in the directory, it wasnt there. I have many security programs running so i doubt that it is a result of spyware, trojans, viruses, or rootkits. I read somewhere on the forum that avast has problems after a file system change, and i had just recently changed my D drive from FAT32 to NTFS. This may have been the reason. Anyway, I decided to not try to dig too deep into the issue and switch to Antivir which seems to be working so far. I liked Avast! when I had it, I just wish it didnt stop working after I changed the file system.