I have a 2009 mac pro ( 2.66 Ghz Quad core-Intel Xeon) running Maverick. I have a legit version of Photoshop CS6 on a cd and cannot find the serial # to reinstall. It was not registered, I cannot find the sales receipt, Adobe chat was of no help and can't get a live person there to talk to. Belarc Advisor doesn't seem to run on a mac. You out there are my last hope. I would really appreciate any help. Thanks in advance.