Only getting Server State "Over" for my results

Somebody explain to me why I'm only getting Server State "Over" and thus no credits?

I'm running a P4 2.8GHz with WindowsXP, 512MB RAM, and exit out of all programs and just about all of the tray icons before I go home at night (then leave it on all night to run BOINC only). I'm doing 50/50 sharing with Seti@Home and somehow that's getting a bunch of credits, but for my 10 results listed for my account, they're all "Over" with Outcome "Client Error". Here's a copy and paste of the results:

Result ID
click for details Work unit ID
click for details Sent Time reported
or deadline
explain Server state
explain Outcome
explain Client state
explain CPU time (sec) claimed credit granted credit
7595565 1801411 17 Aug 2005 0:15:59 UTC 17 Aug 2005 18:14:21 UTC Over Client error Computing 6,630.91 15.13 ---
7567434 1794379 16 Aug 2005 20:11:54 UTC 16 Aug 2005 22:29:29 UTC Over Client error Computing 2,058.18 4.70 ---
7426400 1761378 12 Aug 2005 0:43:26 UTC 16 Aug 2005 20:11:54 UTC Over Client error Computing 21,684.15 49.47 ---
7387586 1752375 11 Aug 2005 0:04:54 UTC 11 Aug 2005 2:26:19 UTC Over Client error Computing 3,691.08 7.42 ---
7358686 1745664 10 Aug 2005 0:31:26 UTC 10 Aug 2005 2:38:07 UTC Over Client error Computing 34.18 0.07 ---
7345302 1742561 9 Aug 2005 0:17:08 UTC 9 Aug 2005 3:18:26 UTC Over Client error Computing 3,301.07 6.64 ---
7289515 1729596 8 Aug 2005 0:17:59 UTC 8 Aug 2005 21:34:26 UTC Over Client error Computing 11,983.32 24.09 ---
7279156 1727168 7 Aug 2005 0:58:34 UTC 7 Aug 2005 3:26:52 UTC Over Client error Computing 345.30 0.68 ---
7256422 1721877 6 Aug 2005 6:48:02 UTC 6 Aug 2005 6:53:08 UTC Over Client error Computing 233.14 0.46 ---
7189259 1706405 4 Aug 2005 20:09:22 UTC 5 Aug 2005 17:03:24 UTC Over Client error Computing 10,407.24 20.51 ---