Can't say with certainty, but I tend to doubt that.
If I recall, you do need to set the Mabry DebugMode property to TRUE or 1 or something like that. That should trigger the DEBUG event to fire, which has a message parameter that you can view, write to a file, etc.
Also, in prior versions of Fox, you needed to set VFP's AutoYield to false...not sure if you still need to do that or not.
What was the specific error that triggered this? Is it an error that results directly from issuing a specific Mabry command?
Kevin