Yes I can tell what happened.
Your box exploded.
Actually it looks like the Double Gromacs core that this work units uses encountered an out-of-range error and gave you an Early_Unit_End. I have had several of these, all on p33xx work units.
Looking at your points charts I see that you were credited for two work units today, one for 19 points and one for 40 points. That is a sure sign of a EUE caused by work unit errors.
The server seems to connect OK, and there do not seem to be any other issues with overclocking. It is possible that the SSE boost is the source of the problem but I haven't been able to confirm it.
Stanford will tighten up the boundaries of these work units within a week, once they discover the source of the EUEs.
It's given me another p3301, we'll see if I'm lucky enough not to be injured by more flying glass. Must be a problem with their p33xx's
My p2124 is on step 96 and should be through soon.
My SSE boost shows to be ok.