RE: after few minutes recording in dell webcam central, audio when playing back starts to slow down and eventually stop
Sorry that you have not received a reply. I don't know what the answer is.
If it were mine and I really needed to have that feature, I would consider returning the laptop to the original factory configuration using Factory Image Restore. Doing that should fix the problem unless there has been some hardware failure.
Jim Coates -- 15 years on the Dell Laptop Audio boards -- since 2/6/04