Windows Server 2003 SP2 x64 in Terminal Services mode can only print plain text documents from Notepad or Wordpad or Windows Printer Test Pages from the console as Administrator, but can print any documents when logged in via Terminal Services / Remote Desktop as any user including Administrator. This started on 2/4/09. That day, .NET Framework 2.0 and 3.0 were installed.
When attempting to print a web page from FireFox while logged into the console as Administrator, an error message comes up stating "You may not be able to print after installing .NET F..." The rest of the message is truncated and the wording may not be exact.
Hotfix 944203 from Microsoft has been applied and re-applied with no change.