edit pspice model => error cant find nomd.lib

I ran a simulation an it ran well,
but after i editted one of the models, and ran the simulation again,
it wrote :
ERROR -- Can't find library
.lib "nomd.lib"

I checked in the 'edit simulation profile' -> 'configuration files' -> 'library' and nomd.lib is still there.
I tried to rejoin it as global library, but it didnt help.

what is the pspice's problem?

Thanks!

You changed something in the file Pspice doesn't like. Change it back to the original configuration and try again.

That's why it's always a good idea to make a backup when you edit a model file.

It happens even when i dont change a thing, just click on 'edit pspice model' and then click on 'save' (even though i didnt change a thing).
What was wrong?

Found the problem.
I needed to save it's library under C:\OrCAD\OrCAD_16.2\tools\PSpice\Library.

Thanks!