Crystal XI SP4 fails to install

Hello,

when I go to install the Crystal XI SP4 I have it fails to install. It gets so far and then it just crashes out, no error message. No warning. Nothing.

I have successfully installed this on other machines I have before with no problems, and this is the first time I have come across it.

It gets to the following screen, but once I press the "Next" button, it crashes out.

It pops up with "Copying Backup Files" then everything closes and the service stops running

http://i214.photobucket.com/albums/cc223/Ikinboy/CrystalXISP4failsafternext.png

Any help is appreciated.

Thanks