Garry,
Thanks, didn't realise you could do that!
I ran the grep and got the same as David, plus one of my own!

David,
Yes, I did have a browser window open on the webcam security page. I've completely re-written the security pages, but for some daft reason left the deskgrab call in one of them, so when I left it on that page the errors poured into the log...

Now to fix MH exiting 4 - 8 times a day, but I'll start another thread for that... :)

Many thanks guys, your help is much appreciated!