Aside from the normal CTD, which I'm quite looking forward to seeing in a perverse way ('cos that means I can at least run BOB2 again

) I have major issues getting BOB2 to run.
After re-setting my options as advised in other threads I am repeatedly presented with a 'Software Protection Error' dialogue box that implores me to 'Please insert original disk in drive'.
Examining the disk reveals it to be lightly scratched in many areas, which is a bit shocking as I purchased it today and literally took it from case to drive only. There was also a large thumbprint on it too which indicates the shop have mishandled it (it's one of those 'leave the case on the shelf sans CD and stick it in when purchased shops called Game).
Oh yes, they also asked if I was sure it would run on my PC as it cannot be returned once bought, I just love the UK trading laws - I tried explaining that copy-protection should allow me to return but no joy.
I have a second copy being delivered tomorrow via Amazon, we'll see if that's Ok.
Where/how can I get the CD exchanged in the UK?