Problem with my Motorola E8 Rokr

Question

I recently got a new E8 Rokr when signing up with T-mobile. I didn't have any problems with it right away, but just recently it says "synchronizing" constantly in the upper left corner of my phone with a funny symbol. At the same time my phone has been responding very slowly to commands and think this might be the problem. Any of you know what this might be or how to fix this problem (aka, get it to stop synchronizing).