While appreciating turning off the screen saver works around this, it would be good to see it fixed (it's still present in [1.8]). Screen savers have their uses and it's a pain to have to disable it to play the game, and every now and then I forget - resulting in my session being inevitably toasted eventually.
I'm also suspicious that FELH simply losing focus sometimes causes the same error (sorry - forgot to make a note - something about DX error - I'll update again when I next see it), which is potentially more serious.
Screen saver and/or losing focus is not guaranteed death, but wrt the screen saver, the longer it's on the more likely I'm going to find a dead session when I get back.
There's no crash dump file created - apparently doesn't even make it that far.
Most recent debug.err is here in case it sheds any light on the issue (it just crashed - copied it before restarting the game).
In case it's relevant here's my dxdiag dump.
