COM+ error in event viewer.......

[chrisexv6]

Running a webservice under IIS 5.0, we've recently started seeing COM+
errors in Event Viewer. The details are:

Event Type: Error
Event Source: COM+
Event Category: SVC
Event ID: 4194
Date: 4/25/2007
Time: 9:43:44 AM
User: N/A
Computer: HASLER-WEB002
Description:
The system has called a custom component and that component has failed
and generated an exception. This indicates a problem with the custom
component. Notify the developer of this component that a failure has
occurred and provide them with the information below.
Component Prog ID: 0[ODBC][Env 1ace2570]
Method Name: IDispenserDriver::DestroyResource
Process Name: aspnet_wp.exe
The serious nature of this error has caused the process to terminate.
Exception: C0000005
Address: 0x72A08312
Call Stack:
DBGHELP!GetTimestampForLoadedLibrary + 0x2600
+ 0x1F7A7460
+ 0xFC1F92D0

Right after this error, aspnet_wp.exe "unexpectedly stops" according
to Event Viewer. The user is also greeted with a message saying the
server was expecting XML but got HTML (presumably because the service
machine was having issues with this COM+ error). Refreshing the web
page *always* does the trick......the page comes back fine, the
service answers correctly, etc. and the data displays.

Any ideas? The service being called accesses an AS400 data source
using the client access express ODBC driver. Note that this service
has been in place for months and never had an issue like this.

-Chris