Change Public declaration to DITA 1.2

Hello,

I am having a difficult time changing the Public ID from:
PUBLIC "-//OASIS//DTD DITA 1.1 Concept//EN"
to
PUBLIC "-//OASIS//DTD DITA 1.2 Concept//EN"

I have gone through the help file and tried several things with no luck. I must be doing something wrong. In my latest attempt, I have used dtd2ini to create a content model from the DITA 1.2 ditabase.dtd. Now I can't get Mif2Go to use it.

Here's the [Topic} section of the content model (DITAconcept.ini) I placed here: C:/DATA/OMSYS/myproject/config

[Topic]
ModelName=DITA 1.2
TopicRoot=concept
TopicStart=title
TopicBody=conbody
PrologDType="-//OASIS//DTD DITA 1.2 Concept//EN"
PrologDTD= "concept"

Here's a chunk of my _m2dita.ini file.

[DITAContentModels]
DITAconcept=DITA 1.2

[Topic]
TopicRoot=concept
PrologDType="-//OASIS//DTD DITA Concept//EN"
ModelName=DITA 1.2

[DITAOptions]
SpecIniDir= C:/DATA/OMSYS/myproject/config

Thanks,
Stan

Test case, please

Your settings all look correct to me. Would you kindly prepare a one-page test case showing the problem? Include the .fm, .mif (VERY important!), .prj, your .inis, and all outputs including the log, all in one .zip? Send it to us at the address in the User's Guide Appendix D (not repeated here because spammers would make it unusable immediately). Thanks!