RE: post 58 - shadowdancer Rita used her P4 serial to upgrade to P5. CL thens marks that serial as used for upgrade and no longer valid to get an upgrade (a). Rita sold her P5 and transfered the serial to you. Rita then tried to do a P4 to P6 upgrade. The store website (DigitalRiver) said 'serial number not valid', but didn't explain why, see (a). So you can upgrade from P6 to P7, but not P5 to P7 as you used the P5 serial to get the P6 upgrade. IMO, all the serials used by a customer should be retained in their account info and marked with a note that explains the path of upgrade that user took, pointers to the account a serial was sold to, etc. It ain't hard to db info. DigialRiver may even not have had access to that info, just had a auto-response from CL's database that it wasn't valid. CL didn't do anything wrong other than dealing with Rita very very poorly by not clearly explaining this. Then we all got excited over her mistreatment and made a loud noise! I like banging pots together, also :)