Glen,
The only problem with using a laptop mike is that if you also use the internal speaker you may get feedback. A way round is to use earphones and the laptop mic. However you must also make sure that when you connect for the session that it is quiet around you so it doesnt disturb the session for others.
Regards,
Imran
thanks Imran,
it think this will do me (earphones) I'll be listening more than talking, so may just switch mike off when not required
ta
glen