Hmm. Can you please post as much details as possible about your system specs? Windows version, what you're doing when the message appears, etc.
Thanks.
sure yannick. i'm running a 1,5GHz P4 and windows millenium and i've found out this message comes out most of the times when i try to load a track with a lot of VST. so i believe this is due to the lack of power of my PC...