OPO: switching files between Mac and Windows

I have Oracle Power Objects applications for the mac. I opened them in windows to further develope them, because the mac cannot connect to Personal Oracle 7. When I tried to open them in the mac again, because that is the platform they are to be used on, I got an error message saying "Problem reading because the file was in a later version."

Is there more than one version? Has anybody else had this problem?

JB Received on Tue Jun 04 1996 - 00:00:00 CEST