VBA Error

I'm successfully using the Oberon Color Replacer macro on 5 workstations but one workstation keeps getting this run-time error. I've run a repair of CorelDraw and all the other macros work properly on this workstation so I'm not inclined to blame Microsoft Visual Basic for this one. I've replaced the GMS file with a known working file and still no luck. Can anyone shed some light on what's happening or point to other steps I might take to fix it?