[BeenTrampled]

Okay...I've disabled UPnP and NAT-PMP under "Connection"...and I've disabled "Enable DHT Network" and "DHT for new torrents," but can't see an option for "Resolve IPs."

Thanks for helping me guys, by the way. I really appreciate it.

EDIT: ...I've run into the same problem. The PortChecker program says my port is open, but that it can't "ping" my computer.