On shift: DJ and PZ Finished deceleration: Ecm at 3416 MeV Took pedestal run 5523 at 00:45. At 1:35 started run 5524 with 50.5 mA of beam. This run was interrupted by almost constant DAQ hangs: approximately every 5-10 minutes, often multiple hangs requiring several resets. Finished run 5524 at 6:00 with 46.4 mA, and 302 nb-1 luminosity. Attempted to begin run 5525; DAQ hangups became almost constant. KG arrived at 7:00 to look at the problem: run 5525 was aborted. Started run 5526 at 7:45, DAQ hangups have now stopped. Beam current at end of shift is 44.3 mA. Cheers, Dave J