When I open my computer.

This is unusual for about a week now when I go to my computer and double click any of the drive icons the search results window opens thought maybe a virus or trojan but I am not finding one. I can view the drive contents if I right click and select explore. I checked in folder options and did not see any kind of settings there. I am running XP PRO SP2 I wan’t to get it back to double opens win explorer. Any ideas are appriciated.