[otrs] Problems with standard install of 2.4.2 using windows installer.

Hi I'm having problems getting a standard windows install of version 2.4.2 to work. After the install, when I try to log in to http://localhost/otrs/index.pl on the server with root@localhost / root I get the following error message: Software error: junk 'HTTP/1.1 version="1.0" encoding="utf-8" ' before XML element The same thing happens with the 2.4.1 installer. No problems with the 2.3.4 installer. System is Windows Server 2003 R2 with all the latest updates. Running on VMware if that should matter. Any ideas? Lars