More information needed for someone to help... please click below and provide the requested information
-Premiere Elements FAQ http://forums.adobe.com/thread/1042180
What is your exact brand/model graphics adapter (ATI or nVidia or ???)
What is your exact graphics adapter driver version?
Have you gone to the vendor web site to check for a newer driver?
-If Windows, do NOT rely on Windows Update to have current driver information
-you need to go direct to the vendor web site and check updates for yourself
nVidia Driver Updates http://www.nvidia.com/Download/index.aspx?lang=en-us
Exactly what are you editing?
Codec & Format information, with 2 links inside to read
-read both links in reply #1 http://forums.adobe.com/thread/1270588
Report back with the codec details of your file, use the programs below... A screen shot works well to SHOW people what you are doing
What version of Premiere Elements do you have and on what computer operating system is it running?
You say that you have a NVIDIA video card. If you have Premiere Elements 10, please check out the following thread
that documents the recent wave of display problems seeming to target Premiere Elements 10 with NVIDIA video card users.
In these cases, the answer seems to have been rolling back the video card driver rather than going for the latest version of it.
Please review and then let us know the outcome.
Thank you both. Yes, indeed it was the latest version of NVIDIA's drivers. I went back to an older version and it worked. I am using Premiere Elements 10 on Win7. Thanks again.
Thanks for the good news that the roll back of your NVIDIA video card driver worked as a workaround to get you moving forward with your Premiere Elements 10.
Your follow up will contribute to bringing attention to a problem that needs addressing sooner than later by NVIDIA and Adobe.
The follow up was much appreciated.