Since 9-4-08 I have had SF 4.0.1.785  shutdown or hang multiple times, until I restarted the service or server.  In looking in the logs I noticed a number of exceptions and then an out of memory error.  After the 2nd time it happened I cleaned out the temp and queue directories and the error still appeared, so I am guessing it is not a stuck message. The log shows the following:

09/07/08 11:03:25:675 -- (1928) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:03:30:705 -- (1920) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:03:35:705 -- (352) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:03:40:705 -- (216) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:03:45:705 -- (1824) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:03:50:704 -- (1892) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:03:55:704 -- (1896) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:00:704 -- (1976) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:05:703 -- (1956) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:07:453 -- (1948) Saved GreyListAllowed.txt
09/07/08 11:04:07:594 -- (188) Running TTerminateIdleThreads - SFTC=0 - SFFC=0
09/07/08 11:04:07:594 -- (188) Running TTerminateIdleThreads SSL - SFTC=0 - SFFC=0
09/07/08 11:04:07:594 -- (192) Blacklist cache - starting cleanup
09/07/08 11:04:07:594 -- (1980) Starting to process quarantine directory...
09/07/08 11:04:08:094 -- Reloading local black / white lists: SpamFilter.ini
09/07/08 11:04:08:156 -- (184) SpamFilterForm - Begin loading corpus.db
09/07/08 11:04:08:625 -- (184) TSpamFilterForm - Begin LoadFromFile for corpus.db (db.dat)
09/07/08 11:04:08:828 -- (184) TSpamFilterForm - LoadFromFile for Corpus.db - copied db.dat -> IndB.tmp
09/07/08 11:04:08:844 -- (184) TSpamFilterForm - LoadFromFile for Corpus.db - copied db.dat.prb -> IndC.tmp
09/07/08 11:04:08:953 -- (184) TSpamFilterForm - LoadFromFile for Corpus.db - setting Buffer size to 380386
09/07/08 11:04:08:953 -- (184) TSpamFilterForm - LoadFromFile for Corpus.db - Reading Buffer in mem
09/07/08 11:04:08:969 -- (184) TSpamFilterForm - LoadFromFile for Corpus.db - loaded files in memory - IndB.tmp
09/07/08 11:04:09:000 -- (184) TSpamFilterForm - LoadFromFile for Corpus.db - loaded files in memory - IndC.tmp
09/07/08 11:04:09:110 -- (184) TSpamFilterForm - End LoadFromFile for corpus.db (db.dat) (156)
09/07/08 11:04:09:125 -- (184) SpamFilterForm - End loading corpus.db
09/07/08 11:04:10:953 -- (1644) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:15:953 -- (1116) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:20:953 -- (280) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:25:952 -- (1252) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:30:952 -- (288) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:35:952 -- (1780) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:40:951 -- (2032) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:45:951 -- (1632) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:50:951 -- (788) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:04:55:951 -- (1008) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:00:950 -- (1296) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:05:950 -- (1900) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:07:591 -- (592) Running TTerminateIdleThreads - SFTC=0 - SFFC=0
09/07/08 11:05:07:591 -- (592) Running TTerminateIdleThreads SSL - SFTC=0 - SFFC=0
09/07/08 11:05:07:591 -- (164) Blacklist cache - starting cleanup
09/07/08 11:05:07:919 -- Reloading local black / white lists: SpamFilter.ini
09/07/08 11:05:10:028 -- (1084) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:15:106 -- (904) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:20:121 -- (1380) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:25:152 -- (176) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:30:183 -- (1172) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:35:198 -- (1944) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:40:198 -- (2020) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:45:198 -- (1876) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:50:197 -- (1284) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
09/07/08 11:05:55:197 -- (1144) Exception occurred during TDeliverQuarantineThread.Execute: The path could not be found 1 2 3 4 36 37 38
 

Any insight or help would be most appreciated.

Thanks,
Stuart