First of all, thanks for offering your help. Prior to doing anything i have a few question (some may sound stupid, no pro here): 1. Does this debugging tool, you know, slow down the system, take up resources (is it adviced to uninstall it afterwards)? 2. When exactly should i press CTRL + SCROLL LOCK, after it hangs (how can it respond if the system hangs?) or just before? 3. I don't have a c:\windows\minidump folder, why's that? Shouldn't there be one?