For the playback issues, let's step back a bit.
Can you tell us which version of PrE you are using?
Then, please give us details on the full specs. of your Source Footage, such as the Frame Size, Frame Rate, file types, and CODEC used. Knowing which camera the footage came from might give us some of that info, and for even more detail, either G-Spot, or MediaInfo (both great, free AV file info utilities) will provide that info.
Good luck, and please let us know more - the more info, the better.
As Hunt asked, you have not told us your version... so I am going to post ALL of the learning links I have
Online User Guide http://help.adobe.com/en_US/premiereelements/using/index.html
-Page to download current PDF http://helpx.adobe.com/premiere-elements.html
-Previous versions http://helpx.adobe.com/premiere-elements/archive.html
Saving & Sharing http://forums.adobe.com/thread/1137128
-Sharing to DVD or BluRay http://forums.adobe.com/thread/1137645
-Sharing for Movies http://forums.adobe.com/thread/1051093
-Sharing for Computer http://forums.adobe.com/thread/1058237
Steve's Basic Training Tutorials... steps are the same for several versions
-and http://prodesigntools.com/four-hours-free-video-tutorials-new-photoshop-elements-9-pse9.ht ml
Also, for future questions... These questions below may be for a different product... but the information you need to supply is the same, for the products you use
-Information FAQ http://forums.adobe.com/message/4200840
Thanks everyone for your replies, and I apologize I haven't been back to provide more information. I live in North Dakota, and we've been ravaged by some wonderful weather. I just wanted to touch base and say I will get this information to you guys as the problem persists. Please forgive my slowness.