Washy,
Keep trying mate. Many of us have that problem and some days are worse than others. Some times I can be in there for up to 8 hours without being booted.
Further, I think that there is a script in the program causing the boot

I am in the chat often in the Aussie evenings. Look for Aussie Karrob.
I am in Bathurst NSW, so welcome to RootsChat and to the Chat Room as well

Regards
Robert