CCM 4.1 install error

[trunkyccm]

Hi, I'm setting up a demo ccm on a dl 360 using the well known reg changes. (We are fully licensed and using ccm in a live environment).

The install proceeds well but then after inserting the 2nd cd and whirring away for some time I get the ccm install terminating with an msiexec error. Same as this post

04/04/2005 20:12:07.421 CCMSetup.cpp fnRunCommand CreateProcess returned: 1603
04/04/2005 20:12:07.421 CCMSetup.cpp fnRunCommand Function ended
04/04/2005 20:12:07.437 CCMSetup.cpp fnInstallPackage msiexec.exe: Return Code: 1603: Fatal error during installation.
04/04/2005 20:12:08.593 CCMSetup.cpp fnInstallPackage Cisco CallManager Install did not complete successfully. Review the log file for more information.
04/04/2005 20:12:08.609 CCMSetup.cpp fnInstallPackage User responded "OK" to message box.
04/04/2005 20:12:08.609 CCMSetup.cpp fnInstallPackage Function ended
04/04/2005 20:12:08.609 CCMSetup.cpp WinMain Function ended.

Has anyone done a full 4.1(3) install on non-supported hardware and got it to work ok? If so can clarify necessary steps - do you install sql from ms or cisco?
thx in advance