I just installed the AdCenter Desktop Beta and when I try to log in using my username/password I get that error instantly... It's like it doesn't even try to verify the information I provided.
Anyone else had that problem?
Update: Well it seems it can connect when I install it on my laptop but not on my main PC... the only difference I can think of between them is that my main PC is running Vista X64 SP1 and my laptop is running the X86 version...