Go back to http://forums.adobe.com/community/premiere_elements?view=discussions and, in the area just under ASK A QUESTION enter
To read previous discussions... click SEE MORE RESULTS to, well, see more results of the search
Also, don't forget to run a Disk Verification and a Font Check on your Mac. Corrupt fonts can cause some real problems for this program.
It also matters where you got your copy of the program from. The version available in the App Store has had so many problems that Apple pulled it.
There may also be issues with your Retina display, if you have that feature.