OK... detailed computer information needed... such as in the Information FAQ http://forums.adobe.com/message/4200840
Especially, your exact brand/model graphics video adapter card and the exact device driver number
If you have a laptop... Dual video laptop problems
-http://helpx.adobe.com/premiere-pro/kb/error---preludevideo-play-modul es.html
-http://forums.adobe.com/thread/1001579
-Use BIOS http://forums.adobe.com/thread/1019004?tstart=0
-link to why http://forums.adobe.com/message/4685328
-http://www.anandtech.com/show/4839/mobile-gpu-faceoff-amd-dynamic-swit chable-graphics-vs-nvidia-optimus-technology/2
-HP Fingerprint/Password conflict http://forums.adobe.com/thread/911575
-Mac Utility http://forums.adobe.com/thread/1017891?tstart=0
Also, since you are new to the program, there is a tutorial list in message #3 http://forums.adobe.com/message/2276578