InfoPath Dev

The december CU is the December Cumulative Update that is currently installed. I have tried updating to the last update but in the process lost a functioning sharepoint and i am running a backup now. The weird  thing is that when I upload an xml that does not work to another newly created list, with only the infopath content type associated, ...

 I have a couple of infopath forms deployed to sharepoint as content types. Normally, when a user creates a new document of an infopath content type, the form opens in browser mode and ,when the user fills in the form and saves the form, a new document is created in the document library with the correct icon and progid. This was ...