John,

> >The patch is completely platform specific.
> >
> >>  I'm assuming you need an external call in
> >>  primitiveSignalAtMilliseconds
> >
> >No; all I'm doing is resetting the interrupt check counter each msec.
> >
> 
> Ah, so you are resetting the interrupt check counter to zero every 
> millisecond based on some timer interrupt?
> 
> Did you try setting
> 
> Interpreter>>initialize
> 
> interruptChecksEveryNms _ 5.
> 
> to say 2?

No I didn't. But it's a good point. I'll check it out.

Cheers,
  - Andreas