Thanks SWGUY! Renamed the table (didn't touch any field values or anything) and all appears to be working brilliantly!

You're quite right about setting up a testing site. I should have known better. Also, I didn't even think about the ability to refund credit card amounts on test purchases. I'm new, can you tell?

I just tested and all works well. The unrelated tax issue appears to be resolved now too.

Once again mate, thanks very much for your help! You're a legend!

Cheers,

Stanbridge