Alicia,
I see what you're talking about. I have an A2 also. Have you loaded the newest firm ware update for the camera. I've heard of this problem that some A2 were having and the firm ware updated cured the problem.
Also, after you have loaded try setting the camera to capture a in the 'fine' setting and not the standard. It gives ia bit more data to work with the pics in photoshop or other programs.
I'll post the newest firm ware for you in just a bit.
-Hope this helps