License Error: LMC-18955

I've been using "PSpice for TI" for several weeks with no problems. Then I purchased and installed the OrCAD Standard package (Capture and PCB Layout). Now when I launch the "PSpice for TI" program, I get the "ERROR (LMC-18955): License file failed" dialog... The path to the "PSpice for TI" license is correct. My guess is that the OrCAD installation license manager is taking over. How do I get functionality back for "PSpice for TI"?

Thanks,

Doug