Error when saving rendered images in current CVS build

When trying to use F3 to save a rendered image I get an error and program 
abort on the Windows version. This is the most current sources from CVS 
(built this morning). The error occurs regardless of the format chosen when 
the SAVE TGA (or SAVE whatever format) button is pressed. The specific 
error is:

The instruction at "0x77f8206b" referenced memory at "0x00000034". The 
memory could not be "read".

I don't have time to look into details of this right now so I'm going to 
toss it to whoever catches it.

Dave S.