Is anyone else experiencing some weird charging issues, like the AC adapter not working all the time when you plug it in? But the USB charging of it works, I tested it, and looked at the pins, and it all works, I even tested on another BB.. and it charges every time i plug it in the AC adapter..

If anyone else is or has experienced this problem please let me know if it's a defect or if there is a fix.

I had this problem a while back. I have a pearl I bought off of eBay and I thought I was going to be out of luck if I had a defective device.
I knew that I had recently installed a bunch of programs, namely the Soft Reset, Autolock, and Color Pearl freeware. I deleted them, reset the device, and never had the issue again, it charges without any trouble.
Hope this helps!

Make sure it's OEM.