P3062: Client-core communications error: ERROR 0x1

  [20:08:26] *------------------------------*
[20:08:26] Folding@Home Gromacs SMP Core
[20:08:26] Version 1.74 (November 27, 2006)
[20:08:26] 
[20:08:26] Preparing to commence simulation
[20:08:26] - Ensuring status. Please wait.
[20:08:43] - Looking at optimizations...
[20:08:43] - Working with standard loops on this execution.
[20:08:43] - Previous termination of core w- Expanded 609871 -> 3263133 (d- Expanded 609871 -> 326313- Starting from initial work pa- Starting from initial work pa- Starting from initial work packet
[20:08:43] 
[20:08:43] Project: 3062 (Run 2, Clone 9, Gen 13)
[20:08:43] 
[20:08:43] Entering M.D.
[20:08:49] Protein: p3062_lambdaProtein: p3062_lambda5_99sb
[20:08:49] Writing local files
[20:08:50] Extra SSE boost OK.
[20:08:50] Writing local files
[20:08:50] Completed 0 out of 5000000 steps  (0 percent)
[20:16:36] Writing local files
[20:16:36] Completed 50000 out of 5000000 steps  (1 percent)
[20:24:36] Writing local files
[20:24:36] Completed 100000 out of 5000000 steps  (2 percent)
[20:32:25] Writing local files
[20:32:25] Completed 150000 out of 5000000 steps  (3 percent)
                              [color=#8080FF]**edited for space**[/color]
[07:53:04] Writing local files
[07:53:04] Completed 4450000 out of 5000000 steps  (89 percent)
[08:00:54] Writing local files
[08:00:54] Completed 4500000 out of 5000000 steps  (90 percent)
[08:07:37] Warning:  long 1-4 interactions
[08:07:42] CoreStatus = 1 (1)
[08:07:42] Client-core communications error: ERROR 0x1
[08:07:42] Deleting current work unit & continuing...
[08:12:03] - Warning: Could not delete all work unit files (8): Core returned invalid code
[08:12:03] Trying to send all finished work units
[08:12:03] + No unsent completed units remaining.
[08:12:03] - Preparing to get new work unit...
[08:12:03] + Attempting to get work packet
[08:12:03] - Will indicate memory of 1004 MB