Server Application Unavailable

Hi all,
I'm getting a "Server Application Unavailable" error message when I runa query against my database which is in MS Access. Other pages arerunning fine. Also, the query runs for some particular combinations butfor other I get this error. I'm not sure why. And all this stratedhappening suddenly. Previously, it was running without problems and Ididn't even change the code. So why now?
the web server I'm using is Windows 2000 Server. The version of ASP.NET I have is 1.1.
I viewed the event log which describes a different error every time Irefresh the page. The errors are none of those that I found aftersearching on the net and msdn.
It seems I'm getting two error messages per refresh but they all seem to be different.
I have copied the event log below:
1)
Event Type: Error
Event Source: .NET Runtime
Event Category: None
Event ID: 0
Date: 5/12/2005
Time: 9:39:21 AM
User: N/A
Computer: (omitted)
Description:
The description for Event ID ( 0 ) in Source ( .NET Runtime ) cannot befound. The local computer may not have the necessary registryinformation or message DLL files to display messages from a remotecomputer. The following information is part of the event: .NET Runtimeversion 1.1.4322.573- Setup Error: Failed to load resources fromresource file
Please check your Setup.

2)
Event Type: Error
Event Source: ASP.NET 1.1.4322.0
Event Category: None
Event ID: 1008
Date: 5/12/2005
Time: 9:39:55 AM
User: N/A
Computer:
Description:
aspnet_wp.exe (PID: 3256) was recycled because it failed to respond to ping message.

3)
Event Type: Error
Event Source: .NET Runtime
Event Category: None
Event ID: 0
Date: 5/12/2005
Time: 9:51:46 AM
User: N/A
Computer:
Description:
The description for Event ID ( 0 ) in Source ( .NET Runtime ) cannot befound. The local computer may not have the necessary registryinformation or message DLL files to display messages from a remotecomputer. The following information is part of the event: .NET Runtimeversion 1.1.4322.573- aspnet_wp.exe - Common Language Runtime DebuggingServices: Application has generated an exception that could not behandled.
Process id=0x1320 (4896), Thread id=0xbd0 (3024).
Click OK to terminate the application.
Click CANCEL to debug the application..

4)
Event Type: Error
Event Source: ASP.NET 1.1.4322.0
Event Category: None
Event ID: 1000
Date: 5/12/2005
Time: 9:51:46 AM
User: N/A
Computer:
Description:
aspnet_wp.exe (PID: 4896) stopped unexpectedly.
I would really appreciate any help on this. Please help me.
Thanks in advance.
Usually, this happens when you have an infinite loop in your code. This seems to be confirmed by the problem only appearing for some parameters.