IDS 9.30.TC2 Database Corruptions?! Help!

I am running Informix Dynamic Server Version 9.30.TC2 on Windows 2000 SP4. We run a custom application provided by an informix developer. I'm not really sure what is causing it, and our application provider doesn't seem to know either. We did have an unexpected shutdown, but I would be suprised if it wasn't robust enough to handle that. Below I have copied some of the error messages we have recorded in a *.log file as well as from the Security Event log. Can anyone decipher them? Currently one of our options is to restore an old backup, and lose over a week's data, but I don't really want to do that. Generally the system seems stable, except in a few areas. Any ideas? Are there other places to look for error messages from IDS? Thanks! Craig. 14/2/05... 12:34:11 Assert Failed: Slot 1 not free in page 0x2c in partnum 0x20019b 12:34:11 Informix Dynamic Server Version 9.30.TC2 12:34:11 Who: Session(382, informix@MYSERVER.OURDOMAIN, 5280, 0) Thread(423, sqlexec, 0, 1) File: rsbitmap.c Line: 4349 12:34:11 Results: Internally corrected 12:34:11 stack trace for pid 3792 written to E:\\\\tmp\\\\af.58f0e23 12:34:11 See Also: E:\\\\tmp\\\\af.58f0e23 12:34:14 Releasing server from system block 12:34:21 Slot 1 not free in page 0x2c in partnum 0x20019b 12:34:21 Slot 1 not free in page 0x2c in partnum 0x20019b 12:34:21 Assert Failed: Slot allocation error for 'maindb:"root".studabsent' 12:34:21 Informix Dynamic Server Version 9.30.TC2 12:34:21 Who: Session(382, informix@MYSERVER.OURDOMAIN, 5280, 0) Thread(423, sqlexec, 0, 1) File: rsbitmap.c Line: 1759 12:34:21 Results: Internally corrected 12:34:21 Action: Run 'oncheck -cDI maindb:"root".studabsent' 12:34:21 stack trace for pid 3792 written to E:\\\\tmp\\\\af.58f0e23 12:34:21 See Also: E:\\\\tmp\\\\af.58f0e23 12:34:28 Slot allocation error for 'maindb:"root".studabsent' 12:34:28 Slot allocation error for 'maindb:"root".studabsent' 12:35:14 Fuzzy Checkpoint Completed: duration was 0 seconds, 88 buffers not flushed. 12:35:14 Checkpoint loguniq 4494, logpos 0x1ba508 15:10:34 Logical Log 4495 Complete. 15:10:43 Assert Failed: Slot 1 not free in page 0x423 in partnum 0x20022d 15:10:43 Informix Dynamic Server Version 9.30.TC2 15:10:43 Who: Session(490, informix@MYSERVER.OURDOMAIN, 5644, 0) Thread(529, sqlexec, 0, 1) File: rsbitmap.c Line: 4349 15:10:43 Results: Internally corrected 15:10:43 stack trace for pid 3792 written to E:\\\\tmp\\\\af.5f932d3 15:10:43 See Also: E:\\\\tmp\\\\af.5f932d3 15:10:46 Releasing server from system block 15:10:52 Slot 1 not free in page 0x423 in partnum 0x20022d 15:10:52 Slot 1 not free in page 0x423 in partnum 0x20022d 15:10:52 Assert Failed: Slot allocation error for 'maindb:"root".paraddress' 15:10:52 Informix Dynamic Server Version 9.30.TC2 15:10:52 Who: Session(490, informix@MYSERVER.OURDOMAIN, 5644, 0) Thread(529, sqlexec, 0, 1) File: rsbitmap.c Line: 1759 15:10:52 Results: Internally corrected 15:10:52 Action: Run 'oncheck -cDI maindb:"root".paraddress' 15:10:52 stack trace for pid 3792 written to E:\\\\tmp\\\\af.5f932d3 15:10:52 See Also: E:\\\\tmp\\\\af.5f932d3 15:10:59 Slot allocation error for 'maindb:"root".paraddress' 15:10:59 Slot allocation error for 'maindb:"root".paraddress' 15:11:42 Fuzzy Checkpoint Completed: duration was 0 seconds, 129 buffers not flushed. 15:11:42 Checkpoint loguniq 4496, logpos 0x1b444 16/2/05... 09:37:19 Assert Failed: Error updating table record. 09:37:19 Informix Dynamic Server Version 9.30.TC2 09:37:19 Who: Session(124, informix@MYSERVER.OURDOMAIN, 2168, 0) Thread(187, sqlexec, 0, 1) File: rsrwrite.c Line: 926 09:37:19 Results: Update failed 09:37:19 Action: Run 'oncheck -cDI maindb:"root".studabsent' 09:37:19 stack trace for pid 5844 written to E:\\\\tmp\\\\af.4a387ae 09:37:19 See Also: E:\\\\tmp\\\\af.4a387ae, shmem.4a387ae.0 09:37:22 Releasing server from system block 09:37:29 Error updating table record. 09:37:30 Error updating table record. Event Type: Error Event Source: OnLine Event Category: None Event ID: 3 Date: 16/02/2005 Time: 9:37:29 AM User: N/A Computer: MYSERVER Description: tass : Internal Subsystem failure: 'MT' Error updating table record. Event Type: Error Event Source: OnLine Event Category: None Event ID: 3 Date: 14/02/2005 Time: 3:10:59 PM User: N/A Computer: MYSERVER Description: tass : Internal Subsystem failure: 'MT' Slot allocation error for 'maindb:"root".paraddress' Event Type: Error Event Source: OnLine Event Category: None Event ID: 3 Date: 14/02/2005 Time: 3:10:52 PM User: N/A Computer: MYSERVER Description: tass : Internal Subsystem failure: 'MT' Slot 1 not free in page 0x423 in partnum 0x20022d Event Type: Error Event Source: OnLine Event Category: None Event ID: 3 Date: 14/02/2005 Time: 12:34:28 PM User: N/A Computer: MYSERVER Description: tass : Internal Subsystem failure: 'MT' Slot allocation error for 'maindb:"root".studabsent' Event Type: Error Event Source: OnLine Event Category: None Event ID: 3 Date: 14/02/2005 Time: 12:34:21 PM User: N/A Computer: MYSERVER Description: tass : Internal Subsystem failure: 'MT' Slot 1 not free in page 0x2c in partnum 0x20019b

Sorry for posting twice! I am new to this forum and my first post didn't seem to appear, so I reposted. But I must have just been putting the wrong thing in the search dialog or something :( Thanks for your forbearance! -- Craig.