IBhacknU - Right after my Comcast@home transition, I suddenly started having the identical problem with my queue. By default, I had the networking set to "WinInetDefault" before the transition and that always worked. I couldn't upload for 3 days and then said what the hell and changed it to "WinSockDirect" (since Ken Reneris noted on his website that this was often more robust). After doing that, it immediately worked.
One of my buddies said it was coincidental, but I had stopped and started the queue I don't know how many times, and even set it for passthrough (it was normally set to upload at 3am EST). Changing that network setting seemed to make the difference for me whether coincidental or not. 🙂