converting from lm90 to cimplicity

I recently did the conversion on some of our equipment from LM90 to Cimplicity ME, with no problems...until now.
This is what I'm getting when I verify equality....
---------- Verifying ----------
---------- Hardware Configuration ----------
Verifying: MASTER HARDWARE CHECKSUM EQUAL
Verifying: CONFIG VERSION EQUAL
Verifying: SNP ID EQUAL
Verifying: RACK SLOT CONFIG EQUAL
Verifying: I/0 CONFIG EQUAL
---------- Program Logic ----------
Verifying: _MAIN.dec EQUAL
Verifying: _MAIN.pdt NOT EQUAL
---------- Initial/Forced Values ----------
Verifying: _MAIN Ref Table - %Q EQUAL
Verifying: _MAIN Ref Table - %I EQUAL
Verifying: _MAIN Ref Table - %AQ EQUAL
Verifying: _MAIN Ref Table - %AI EQUAL
Verifying: _MAIN Ref Table - %M EQUAL
Verifying: _MAIN Ref Table - %R EQUAL
Verifying: _MAIN Ref Table - %G EQUAL
---------- Summary of Equality ----------
Hardware Configuration - EQUAL
Program Logic - NOT EQUAL
Initial/Forced Values - EQUAL
---------- Verify with PLC completed. ----------
Disconnecting...
Disconnected from the device
Compare has completed

Everything is equal except for the _MAIN.pdt

Has anyone seen this? Is there something I can do to get past it? Currently, I can not connect to the PLC on this machine.
Thanks.....