Update about the issue :
I went to "Control panel \ Voice" and selected "Microsoft Sam" instead of "LH Michael", and now it's working fine. But using the voice "LH Michael", it doesn't work. Tried with "Microsoft Mike" and "Microsoft Mary" and they are both working fine too.
So maybe it's not a mIRC issue afterall...
Last edited by visionz; 13/04/10 05:47 PM.