2004 Error: Can't run macro, AutoCAD is busy on first run only

I appologize if this is another repeat question to a common problem.
In any new AutoCAD 2004 session I'm getting "Can't run macro, AutoCAD
is busy" for the very first time any VBA macro is run. All VBA
macros run fine after this onetime error. Near As I can tell AutoCad
is not busy at all. It does not matter how I invoke the macro request
nor if I manually load the AcVBA.arx ahead of time nor if I perform
any AutoCAD command or any number of breaks to cancel activity prior
invoking the macro. I can run the first macro if I do an Alt F11.

The text window reports:

Initializing VBA System ...
Macro name: < whatever macro >
Execution error

This has not always been the case. VBAs had always run with no
problem.

Autodesk does not seem to have anything on this particular topic. I
have found some mention of it elsewere but with no resolution.

 

Hello, I am still looking for help on this one if someone would oblige
a pointer. We have a number of workstations without this problem.
Each setup is indentical except for whatever local Acad setting must
be the cuase for this.

Thanks, AKS