DISPLAY variable with Version 4.00.06 under cygwin

I am running cygwin on Windows XP.
I have tried to install the latest binaries for v4.00.06
win32gcc according to Axel Naumans instructions.
When starting root I get the error that the DISPLAY
variable is not set. It asks me to set it manually…
unfortunately i have no idea what to set it to !!

I have successfully been able to install and run
version 4.00.06 gdk and also previous gdk versions.
Is the DISPLAY variable specific to the GCC version?

Thanks for any help

Yes the DISPLAY variable is specific to the gcc version. This version uses the normal X11 library.
You can define this variable with
export DISPLAY=:0.0