A few questions will help us solve your problem:

• What version are you running exactly? Find it under Help > About AIM
• What operating system are you using?
• Does your webcam work with other programs?
• Has your webcam ever worked in AIM before?

5.9.3702
Windows XP
I use a Creative Labs Webcam NX — and yes
I just bought this webcam today and it does not work. My previous webcam had the same problem. However, it USED to work.