See here is also my problem. I tried logging into my work PC. It has a multi monitor setup. And when I went to see the second monitor, I could not. What gives? Ah yes, that is one limitation of RDC v5.1 (the version included w/ XP). RDC v6.0, which is included with Windows Vista, has support for multi-monitor setups. This doesn't help you very much though. If you really need to be able to see both monitors then VNC seems to be your only option.