Instabillity: ashDisp.exe

I have had a proccess in my pc(found by task manager>proccesses tab) called ashDisp.exe and it was always locking up my pc. It even reverted my pc from XP to 2000 a few times! :o When I end it the pc is completely stable. I found out it belongs to avast! internet security by web search. Help! ???

You’re posting twice the same. Please, do not duplicate the help effort.
http://forum.avast.com/index.php?topic=32588.msg279487#msg279487