The users haven't reported any noticeable delay, but it's hard to say for sure since I haven't been able to duplicate the problem myself.
I pulled the entries from the error and vortex logs around the time of the last occurrence - does anything below stick out as an obvious problem?:
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FROM ERROR LOG:
Sat Aug 18 13:59:46 2007] (12973) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:55:42 2007] (12311) write(): Connection reset by peer
[Sat Aug 18 13:52:43 2007] (11812) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:51:57 2007] (11671) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:51:16 2007] (11583) write(): Connection reset by peer
[Sat Aug 18 13:51:05 2007] (11569) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:49:39 2007] (11252) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:48:38 2007] (11101) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:47:59 2007] (10948) write(): Connection reset by peer
[Sat Aug 18 13:47:50 2007] (10926) Remote connection 24.192.93.68 reset during file transfer
[Sat Aug 18 13:45:47 2007] (10556) cannot find file MSOffice/cltreq.asp: No such file or directory
[Sat Aug 18 13:45:46 2007] (10553) cannot find file _vti_bin/owssvr.dll: No such file or directory
[Sat Aug 18 13:42:01 2007] (9977) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:41:44 2007] (9883) Remote connection 71.113.112.216 reset during file transfer
[Sat Aug 18 13:41:43 2007] (9877) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:41:43 2007] (9878) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:41:19 2007] (9806) write(): Connection reset by peer
[Sat Aug 18 13:36:52 2007] (8105) 68.238.4.161 connection timed out
[Sat Aug 18 13:34:50 2007] (8517) write(): Connection reset by peer
[Sat Aug 18 13:32:06 2007] (8180) sub-process exiting due to SIGBUS (signal 7)
[Sat Aug 18 13:27:25 2007] (7442) write(): Connection reset by peer
[Sat Aug 18 13:23:34 2007] (6741) 005 Cannot read from 72.64.37.19
Connection reset by peer in the function htbuf_read
[Sat Aug 18 13:21:18 2007] (6350) Unparsable If-Modified-Since time from 74.166.66.157: `Mozilla/4.0 (compatible; Windows XP 5.1)'
FROM VORTEX LOG:
006 2007-08-18 13:59:52 /search
(12984) Stdout error to 98.194.229.107: Connection reset by peer; exiting
006 2007-08-18 13:59:24 /search:902: (12943) Stdout error to 24.41.60.15: Connection reset/closed?; exiting
006 2007-08-18 13:58:18 (12770) Can't write stdout: Connection reset by peer; exiting
000 2007-08-18 13:58:02 /search:4555: (12683) Terminated (signal 15)
000 2007-08-18 13:58:01 /search:4555: (12673) Terminated (signal 15)
006 2007-08-18 13:57:23 (12615) Stdout error to 63.99.4.26: Connection reset by peer; exiting
006 2007-08-18 13:56:59 /search:4555: (12492) Stdout error to 68.58.125.33: Connection reset/closed?; exiting
006 2007-08-18 13:56:19 (12230) Can't write stdout: Connection reset by peer; exiting
006 2007-08-18 13:56:13 /search
(12431) Stdout error to 209.232.199.32: Connection reset/closed?; exiting
006 2007-08-18 13:55:36 (12297) Can't write stdout: Connection reset by peer; exiting
000 2007-08-18 13:53:14 /usr/local/morph3/texis/scripts/dowalk
SQLPrepare() failed with -1 in the function prepntexis
100 2007-08-18 13:53:14 /usr/local/morph3/texis/scripts/dowalk
Index /usr/local/morph3/texis/rpl.4303763c3/db1/xh_TiDsKyMtBy_ViMoDpPp appears to be being updated
000 2007-08-18 13:53:09 /search
(11930) Terminated (signal 15)
006 2007-08-18 13:52:05 (11689) Can't write stdout: Connection reset by peer; exiting
006 2007-08-18 13:51:46 /search:4491: (11634) Stdout error to 71.210.133.179: Connection reset/closed?; exiting
006 2007-08-18 13:51:23 (11603) Can't write stdout: Connection reset by peer; exiting
000 2007-08-18 13:46:12 /search
(10661) Terminated (signal 15)
000 2007-08-18 13:46:10 /search
(10655) Terminated (signal 15)
000 2007-08-18 13:45:16 /search
(10500) Terminated (signal 15)
000 2007-08-18 13:40:52 /search
Timeout
006 2007-08-18 13:40:22 /search
(9618) Stdout error to 207.200.116.67: Connection reset/closed?; exiting
000 2007-08-18 13:39:44 /search
(9476) Terminated (signal 15)
006 2007-08-18 13:38:03 (9197) Can't write stdout: Connection reset by peer; exiting
000 2007-08-18 13:34:05 /search:663: (8473) Terminated (signal 15)
006 2007-08-18 13:33:04 (8332) Can't write stdout: Connection reset by peer; exiting
006 2007-08-18 13:32:44 (8238) Can't write stdout: Broken pipe; exiting
006 2007-08-18 13:32:29 (8210) Can't write stdout: Connection reset by peer; exiting
006 2007-08-18 13:32:04 (8178) Can't write stdout: Connection reset by peer; exiting
006 2007-08-18 13:28:35 (7600) Can't write stdout: Connection reset by peer; exiting
006 2007-08-18 13:28:00 /search
(7480) Stdout error to 66.227.161.88: Connection reset/closed?; exiting
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