Hope one of you folks can help... I'm running out of hair to pull out!

I'm using Premiere Pro version 7. Just migrated from my old pc to a new windows Vista system. Everything seems to work fine apart from capturing.

Normally, I use device control, and simply press the record button on the screen. Now, when I try to do this, it says "Recordere Error - Can't find capture inpoint. Try increasing preroll".

Any ideas what to do?