MC IDE hangs with speech dll

[FlexibleLearning at aol.com]

Has anyone else noticed that the MC IDE hangs (requiring an End Task  from 
the task manager) after a stack using the speech dll closes in  Windows?
 
Also, revUnloadSpeech is not recognised (it throws a 'handler not  
recognised' error), so if this is meant to be called as the documentation says  it 
should in order to release memory, perhaps this is the problem?
 
/H
(Increasingly frustrated of Cranleigh)