Persistent "Compilers auto-detection" dialog

[nomadwolf]

I recently upgraded from Cygwin 1.5 to 1.7 (in the process changing my cygwin directory from C:\cygwin to C:\cygwin1.7).

Since I removed the 1.5 installation, every time I start C::B, I get the Compilers Auto-detection dialog.
I only have to click OK to get past it, but it's getting quite irritating.  How do I make it stop?
(I have no problem compiling once in C::B)

This occurs both on 8.02 and the November nightly build.