Error op & bottom polygon are intersected in WindowSillT

[Anonymous]

I have modelled a average size supermarket but when i make a library part of it. A message keeps on popping up on "the top & bottom polygon are intersected at line 679 in the 3d script of file windowsilltrim.gsm. If i cancel this message about 15 times it 3d model generates correctly.
Can anyone suggest how can i fix this.
For some reason when i opened this ac10 file in ac11 and saved it as a library again no error occurred. But as luck would have it i made a minor change to the model & when i resaved the library part the error is back again.
Any help would be greatly appreciated.

[Anonymous]

This is likely due to a setting in some instances of windows in the model. If everything is modeling correctly it may be of no consequence. You can turn off the error messages in Options > Work Environment > Imaging & Calculation. Uncheck the box that says "Interrupt with Error Messages". Be sure to remember to redefine/save your revised Work Environment.

If you want to get rid of the errors altogether you will need to adjust the window settings.