I have tried QSpot using company wlan (which requires certain proxy, when using the windows-client of spotify) and my 3G internet connection. Either way, login always fails with the message:

"Error:Some other error occured, and it is permanent (e.g. trying to relogin will not help)."

I verified that my account is working, and I have the correct password, using windows client. Any ideas on this? I will need to test on my home wlan still, but meanwhile, all suggestions are welcome.

Thanks though for this, the screenshots and user comments are promising!