cheers for the quick response
checked out tweakui from that windows dowload site but can't get it to install - it seems I need SP1 installed.
on another note after a bit of googling found out the variable is %programfiles% - you can check out it's path by using yer command promt and typing "echo %programfiles%" or just by typing "set" for a full listing of variables.
Unfortunately, I have been warned, this isn't really a variable - some noobs have hard coded this path into their programs and if you change it much sadness will occur.
I'll give it a go and let you know what happens