I VPN into my work Windows PC (Win7) and used to use MS RDC to access it, but a little while ago a network move at work led to RDC no longer working, although CoRD still works fine. On attempting to connect with RDC 2.1 or 2.0.1, I get 2 error dialogs now. The first complains "The certificate is not from a trusted certification authority", whilst the second says that "The remote computer is not allowing connections from the Mac" (even though I have set the remote computer in question up to allow RDP, as evidenced by my ability to access it via CoRD).
I can still access other PCs on the same work network using RDC, just not the one I want to use! I'd prefer to use RDC over CoRD simply because it is faster on my MBP (which runs an up-to-date version of Snow Leopard).
If anyone has any suggestions as to what I can do to get RDC working again I'd be grateful!