For unexplained reason the Caps lock and left control key functions have
switched. I have tried two different keyboards and it happens on both. Could
this be a virus or is it something gone wrong with windows?

Help!
I've been having a problem with very slow operation so I decided to make
some changes using msconfig to try a diagnostic startup.  When I try to go
back to a normal startup I get a message "An access error was returned while