I’ve tried many “solutions” (psshutdown with xecutor, OnActivate,…), but none of them work on Vista (Home Premium). As soon as I press the power button, a black screen dims my desktop saying: “this program is preventing your computer from shutting down”. The problem occurs even if you only start vvvv without editing or opening any patch.
The problem is the same with XP, but there’s no black screen stealing the focus, so the OnActivate trick should work.
Any suggestions?