EB;
I think what your seeing could be something like an IRQ Steering error of some sort. Basiclly a error in your Windows file system. Your program could be OK, but it might be acting as a trigger.
Is only running FS2K2 by itself causing the error, too?
If I really suspected ArrCab, I would back up all of those files, remove the existing install then carefully reinstall ArrCab, paying particular attention to the ArrCab Scenery.

Beats the snot out of me. Never seen ArrCab cause that type of error. ::)