VS.NET screwing up resources

Hello all,
I have this problem - I was working on my project in
VS.NET using VC++ (MFC). It was all going fine, but one
day something happened during development of a resource
(dialog) and when I tried to use "Add Variable" (as I did
a thousand times before) it gave me an Unhandled Exception
and closed down. It has been doing so eversince. I've
checked the resource.h file and it was all screwed up, so
I manually fixed (so that all resource numbers are ok and
do not duplicate each other, as VS wrote them). It didn't
help. I'm pretty much stuck here until this is solved, so
if anyone knows why this is happening or at least some
directions in which I could start digging I would really
appreciate that help. BTW - if I open up any of my
previous projects, they work fine, and I can add variables
and stuff.
Thank you in advance.
[926 byte] By [dennisV] at [2007-11-17 22:40:06]