Users have Win 7, IE 09, Office 2010 on their desktops.
They are using InfoPath 2010 designer to create web form infopath 2007 compatible applications.
The applications are being published to MOSS SP 2007. The infopath is used to create a content type, and is associated with a MOSS forms library.
Right now, the forms library has 2 versions of the code working just as expected - but the form published most recently does not open in the browser; instead, it attempts to start infopath . The content type for the item failing has the option set to open the form in the web browser. Within Infopath 2010 designer, the compatibility option is set to web browser infopath 2007, as needed.
We have compared all the options and configuration settings we know of and everything seems set the same as the others.
We really could use some suggestions on what else might be wrong.