I have two jobs that errored out:

DSFL_ 00000007_ 0000006_ 0513_ 2-- - In Progress 9/9/11 07:07:38 9/13/11 07:07:38 0.00 0.0 / 0.0
DSFL_ 00000007_ 0000006_ 0513_ 1-- 619 Error 9/5/11 14:38:24 9/9/11 07:00:59 19.54 155.2 / 0.0
DSFL_ 00000007_ 0000006_ 0513_ 0-- 619 Pending Validation 9/5/11 14:37:56 9/7/11 10:59:42 33.69 245.0 / 0.0

and

DSFL_ 00000007_ 0000006_ 0236_ 2-- - In Progress 9/8/11 10:59:57 9/12/11 10:59:57 0.00 0.0 / 0.0
DSFL_ 00000007_ 0000006_ 0236_ 0-- 619 Error 9/5/11 14:38:07 9/8/11 10:58:31 7.81 62.1 / 0.0
DSFL_ 00000007_ 0000006_ 0236_ 1-- 619 Pending Validation 9/5/11 14:38:07 9/6/11 17:18:33 20.73 316.1 / 0.0

The first ended with:

[07:10:04] Finished Job #62 cpu time used 1241.609375
[07:10:04] Starting job 63,CPU time is 70335.687500.
[07:10:04] ZINC06667622.pdbqt size = 24 5 ../../projects/www.worldcommunitygrid.org/dsfl.target_00000007.pdbqt size = 13798 0
Application exited with RC = 0xffffffff
07:10:08 (5296): called boinc_finish

The second with the same error:

[13:08:16] Finished Job #9 cpu time used 3642.312500
[13:08:16] Starting job 10,CPU time is 28111.312500.
[13:08:16] ZINC06348608.pdbqt size = 33 7 ../../projects/www.worldcommunitygrid.org/dsfl.target_00000007.pdbqt size = 13798 0
Application exited with RC = 0xffffffff
13:08:36 (5048): called boinc_finish

What went wrong????
27.35 hours wasted; what a pity.