Unable to get .GetGeoIP() from April 17 PowerTip to work

by Apr 18, 2013

The PowerTip looks simple enough and usefull, but any methods I call using the WebServiceProxy fails with a useless error (bold):

Exception calling "GetGeoIPContext" with "0" argument(s): "System.Web.Services.Protocols.SoapException: Server was
unable to process request. —> System.IO.IOException: There is not enough space on the disk.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.FileStream.WriteCore(Byte[] buffer, Int32 offset, Int32 count)
  Much more

Anyone got it working and could give me a hint (Windows 8 and Windows 7)?