3 wu's finished all 3 have computation errors

03-May-2011 21:53:36 [Enigma@Home] Computation for task pldrv59-2_0_13699769_714_0 finished
03-May-2011 21:53:36 [Enigma@Home] Output file pldrv59-2_0_13699769_714_0_0 for task pldrv59-2_0_13699769_714_0 absent
03-May-2011 21:53:36 [World Community Grid] Resuming task E202014_602_C.23.C18H12S3Si2.00282578.3.set1d06_0 using cep2 version 640
03-May-2011 22:00:16 [Enigma@Home] Computation for task pldrv64-2_0_13701357_382_0 finished
03-May-2011 22:00:16 [Enigma@Home] Output file pldrv64-2_0_13701357_382_0_0 for task pldrv64-2_0_13701357_382_0 absent

I do not understand how possibly the app could finish computation without the output file. From the stderr I see that the computation went fine but then suddenly the file disappeared just before uploading to the server.

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M4 Project homepage
M4 Project wiki

it was because i had symbolic linked my slots directory to a ramdisk to alleviate my HDD of all the i/o from multiple cep2 wu's and seems to have had trouble following the link at the end