Distorted how? There are several different possibilities that could all fall under the general category of "distorted". We're going to need more of a description of what exactly it looks like. Pictures would be even better. It would also be useful knowing exactly what model you have, because there hasn't been a VGA port on an Apple laptop in many many years. So we need to know if it's DVI, Mini-DVI, or Mini-DisplayPort. The model would allow us to look up the specs of that system and find out.
If I hook up my sony bravia tv to the vgi port on the laptop (for extended display), both my MAIN DISPLAY and the EXT DESKTOP work phenomenally. However, if I reboot the laptop (no matter in what order I disconnect the sony tv, before or after shutdown) as soon as the desktop comes up the picture is COMPLETELY DISTORTED! If I then connect the TV and reboot, it works fine.
This also happens if I try to "mirror displays." At that point I have to restart all the time.
OS: Mac OS/X 10.6.3
GPU: Intel GM965 / Intel