Display driver & Baddriver https://forums.adobe.com/thread/1701412
From the Premiere Elements Information FAQ http://forums.adobe.com/thread/1042180
•You MUST use an account with Administrator Privileges to run Premiere Elements
•Doing Run as Administrator http://forums.adobe.com/thread/969395 [says Encore and also for All Adobe programs] will sometimes fix "odd" or "permission" errors
Do you have dual graphics adapters?
Go to the Windows Control Panel and select Hardware and Sound and then select Device Manager... In Device manager you click the + sign to the left of Display Adapters... and see if 2 are listed
IF YES, read below
-link to why http://forums.adobe.com/message/4685328
-Use BIOS http://forums.adobe.com/thread/1019004?tstart=0 to select a display adapter
Premiere Elements 11 on Windows 7 64 bit....
From what you wrote, you have existing and new projects that will not open.
For defective graphics card
have to do with this? Are you getting a Display Card error message as part of the problem that you are reporting? If so, then we might need to delete the BadDrivers.txt file if you already have the video card/graphics card up to date. ATR Premiere Elements Troubleshooting: PE: BadDrivers.Txt File Locations But, first...
Is your problem "it worked before but not now" or "it never worked before"?
1. Go to Manage Task Manager and make sure that the Adobe Premiere Element.exe is not listed as running. If it is, then right click its entry in Task Manager/Process and select End Task.
2. Right click the Desktop icon for Premiere Elements 11, select and apply Run As Administrator.
3. Determine that you have QuickTime 7.7.8 installed on your computer. QuickTime - Download - Apple
and determine that you are running the computer from a user account with administrative privileges. See Control Panel and the User Accounts area.
4. Go to Device Manager/Display Adapters/ and tell us what you see named for your computer video card/graphics card or cards. Then look at the card's Properties/Driver Tab and tell us the driver version and dating. Does the web site of the manufacturer of the card confirm that you have the latest driver version for your video card/graphics card?
Please consider. Any questions or need clarification on the above, please do not hesitate to ask. Many of the questions overlap, depending on the answer for the other. But, the overall answers should direct us in the troubleshooting strategy.