[kurtz]

Similar problem happened to me.

I solved it by using Revo Uninstaller to locate hidden parts of the old installation.
This is freeware http://www.revouninstaller.com/

Use it at your own risk. It tampers with your registry files.
I ran it on the "moderate" setting, which includes an extended registry scan.

Hmm Revo didn't find anything, but thanks for the link, it'll come in handy soon enough I'm sure.

I'm Windows XP SP3, sorry, schoolboy error not mentioning that, also I

think I've got the european version.

Installing on another computer sounds like my remaining alternative, will I need to point the registry towards it or something?

Thanks everybodyfor the replies, what a great community. I'll set about Tir4fun when I'm reinstalled!