InfoPath Dev

I am new to InfoPath and have inherited a solution in Visual Studio for an InfoPath 2007 form.  When I press F5 to run and debug the project, the InfoPath app opens and I get "This feature is not available.  To make this feature available, run Setup again, click "Add or remove Features" and change the feature to "Run from my Computer".  If I click ok there, I get "InfoPath cannot open the selected form."

 I have gone over my InfoPath installation a number of times and ALL features under InfoPath are set to "Run from my Computer".

 What could I be missing?  Thanks in advance.

If you navigate to the InfoPath Form Template folder in the solution and right click manifest.xsf and select 'design', does the form open in design mode? If you preview from that point, what happens?

Yes, that ended up being the solution to my problem.  Instead of opening the manifest.xsf, I tried to simply F5 debug the entire project.

 Thanks!