I am building a module for DNN 4.5 where there is a view control with a place holder that loads other user controls based on user selection.  Right now it is a simple module with some text and a button to load the second control.  The module runs fine when the user is an Admin or a HOST, but a when a normal user attempts to run the module, Application Pool crashes:

System: Vista/iis7

Eventlog Error:

The description for Event ID 1000 from source Application Error cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event:

w3wp.exe

7.0.6000.16386

4549b5f8

kernel32.dll

6.0.6000.16386

4549bd80

e053534f

0001b09e

The substitution string for insert index (%1) could not be found

Any assistance would be greatly appreciated