PIC18F67J10 - Code is making a non-requested jump?

[KentR]

Ok, I have a really strange problem. I have a project with multiple C modules. Two of the modules are very similar (MotorA and MotorB). The MotorB routine seems to be functioning correctly, but MotorA is not. Using the debugger, I am able to step through the code, and a really strange thing is happening.

It executes the first couple statements of the MotorA routine correctly. Then it enters a select-case statement. It jumps to the correct case, BUT IN THE MotorB ROUTINE! I don't understand why it is jumping to the other module. Could this be some kind of linking error? Everything has distinct naming (variables, function names, ...), so I don't know what could be making it jump. Has anyone seen this happen to them?

I am using a PIC18F67J10 device.

[PCM programmer]

Do you have the XINST fuse set ? If so, change it to NOXINST.
Using XINST can cause erratic operation (it's not supported by CCS).

[KentR]

Thanks! I'll try that first thing Monday!