IGlass GUI for blitzmax - V

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Hmmm, bit of a bad night so far.
Build modules for some Mapppy stuff and noticed it also archived igl.debug.win32.a and igl.release.win32.a
Now, when I run any IGL examples produces...
C:/Program Files/BlitzMax/IGlass_1.5.2/.bmx/IGlass_Animated_Button.bmx.gui.debug.win32.o(code+0x1061): undefined reference to `pub_igl_IGL_Fps'
which is repeated for lots of functions.
All examples give the same error.
Copy a backup of my igl.mod directory replacing the old one and all OK again.
Anybody else get this?
Recent changes have been Indiepath's single surface and 'TnL' code.