InfoPath Dev

 Hello,

 I  have an issue when trying to publish a Designer Workflow InfoPath form after I customized the form.  I am getting the following error:

An unknown error has occurred.  The form template has been published to the server but it can only be opened in InfoPath filler.

The really weird issue is that it will sometimes publish and then it will not.  I have tried just about every suggestion on the net.  Any help or guidance would be greatly appreciated.  I have spend about 2 days trying to figure this out..

Thanks.

 On the form, run design checker option (File>Info>Design Checker).

Check your data connections.

Does the form have any code on it i.e. behind a button?

 I have checked design checker-it reports no error.  Data connections look fine and there is not custom code.  The form was created by the workflow.  The form works fine, but if I try to edit the InfoPath form out of SharePoint Designer workflow forms using InfoPath and publish it back, I get the error.  I have changed the timeout settings in the web.config file as most forum posts state that will clear the error, but it did not work for me.  I am not sure how to proceed on it now.