Problem building modules...

I'm trying to rebuild my modules, but the 'build modules' option in the IDE is greyed out and when I hit ctrl-D to perform the action I get this...

Building Modules
Compiling:blitz_app.c
Build Error: failed to compile C:/Program Files/BlitzMax/mod/brl.mod/blitz.mod/blitz_app.c
Process complete

I'm sure I havent modified this file

Any ideas?

Whoops- found the answer... use the 'search' function!

On my computer the option is greyed out as well (brand new frewsh 1.18 install), but the CTRL-D works OK.