Quote - > Quote - I found two folders- one marked Poser and one marked Poser Pro. I deleted both and rebooted my system.

It made no difference.  It still brought up the Poser 9 logo screen and the same error message.

I'm starting to think the executable file IS messed up even though I've installed it twice.

I'd suggest deleting the Poser Pro 2014 install file (just that one) and redownload it.

 

You mean again? That'll be 3 times.