>Do you have an idea what should I do to fix it?
Start by asking in that forum... http://forums.adobe.com/community/premiere_elements
Dual video problems (some for Premiere Pro, but the idea is the same)
-link to why http://forums.adobe.com/message/4685328
The Elements Tutorial Links Page http://forums.adobe.com/thread/1275830 may also help
-has links to the FAQ/TIPS pages
A Moderator should be along soon to move this to the correct forum
[ moved to the Elements forum ]
The point the John makes about the problem that Premiere Elements has with 2 video cards needs to be addressed at the onset.
Is your computer under warranty so that you can get feedback infomation and help on this point from HP and/or AMD if the video card troubleshooting is something that you cannot do?
Have you restarted the computer after making responses the Administrator requests.
For the Premiere Elements 12 download and install, did you let it go with default location or did you customize it to another location? If so, where?
Let us start here and then decide what next.