FWI, Simon. I noted a pattern this morning which may be of interest if not already noted. I had placed my 'version 518' up for remote access and noted a consistent, but not always, crash event when it was being accessed by an operator with 'dial-up' Internet access. Others were accessing the Remote software without a problem and in 'local' mode it seems to be functioning well for me.
Win7 64 bit; FA-66 USB interface; Quad Four Intel CPU
Just another tidbit to stash in that very full pad of debugging knowledge I am sure you have.
Looking forward to the next release... and thank you for all of your work on the behalf of the Amateur community with and without remuneration!
Happy New Year!
Bruce, K2BET