Was your PC a Mac or a Windows machine? If it was a Windows machine then your serial number will not work for a Mac system. YOu could try using a Windows emulator on the Mac and see if it works with that.
It was purchased for a windows PC , however I just downloaded it from adobe for mac it looks like everything should work but it won't accept my serial number. I purchased the online download and not a disc, I have used the serial number in the past to load on new pc's. I wonder if there is a limit to serial number registrations???
If so I dont know what my options would be,
So I am not familiar with win emulator programs is there one better than the other.
If it was a Windows machine then your serial number will not work for a Mac system
ok thanks for the help.