Hi again,

Cheers for reply. I'm still a bit lost as to how these programs interact, but I'd returned to other room to go to bed and found your prompt reply. Shot back upstairs and switched PC back on. Ran up MCS and found MPASM wasn't selected there. Also, it was grizzeling about having a path length of more than 60 odd characters! I relocated it to the root of the drive and voila! It now works! So once again, you've pushed me in the correct direction.
In the meantime, I read with some fascination a thread a few below this one intrigued me, regarding IR recording using a sound card - such a simple but clever idea! Love these forums!!! Keep up the excellent help! I hope one day to contribute some help myself when [if] I become proficient at it all!

Best regards

Jimbo