Just cleaned out a badly infected XP machine. Used Adaware Away to remove About:blank and added latest AVG, Adware, Spybot, etc. Removed 3 user accounts so machine has one user with admin rights and system boots directly to desktop. Upgraded to SP2. Problem is I can't open anything using the Run command. Nor can I open anything within the Administrative Tools. Same with selecting Manage after right clicking on My Computer. Same with Ctrl+Alt+Del. All attempt to open the requested item but the item is briefly displayed on the screen and immediately closes. When selecting Services from within Admin Tools, it displays two windows that close very quickly. One says something about a Security error and Active X. This problem existed from the moment I first started it up. And the problem has remained thru each upgrade/change. I have no trouble accessing any of the listed items when using the Administrator logon in Safe Mode. Searched the MS Knowledge Base and I can't get a clue what is causing this. Anyone have an idea?