Auto Run Doesn't Auto Run

A really nice friend of mine in Australia send me an LCD flatscreen monitor. Now before I hooked it up my auto run on my DVD drive did just as it's supposed to. Now that I do have it hooked auto run doesn't auto run. Could somebody please tell me why?

wont have anything to do with the monitor.

OK then, what does it have to do with?

the disc might not be autorun compatible, or theres a registry setting to disable autorun completely.