Everytime I try to run eplorer.exe all the icons on my desktop dissapear (except the wall paper) after about three seconds the icons reapear. I have already tried going to task manager to determine which prosess is causing it. all I can tell you is the everytime I try explorer.exe disappears. This also happens when I open windows explorer, my documents, my computer, control panel, cockies folder etc. I'm running windows server 2000 and I have service pk4 in it. the only thing I recall was clicking on a link on a website and everything freezing then I saw a message saying that explorer optimiser had been installed. I reestarted the server and thats when the problem started. at first I was able to acces the server from all the other machines. now I'm unable to do it..........help!!!!!!!!!!!!!!!!!!!!