I had been away for more the half an hour.
What I came back to was 100% CPU usage.
Threads at a constant 147
Almost all of my 512 Meg gone.
I thought there may be some thrashing as the
page file was up to 13%.
I started a memory freeing program.
I eventually set it to free 40 Meg when 7Meg was left.
Then I watched the creep about 1K/sec. until the limit is hit.

May be related to the not flushing of data to disk.
I did check

I havent ruled out all other programs yet but there
is only one recent adition
My upload is now well over 1.2 Gig while my download is
only at 900Meg. !!!!!