SQL Server Security Exception Error Message

Question

Because my laptop "broke" I have had to reinstall SQL Server 2008 R2 Express on my machine.  Now when I run an application I have created I am getting the following error message:

        SecurityException was unhandled by user code

Within the message box the following description is given:

        The source was not found, but some or all event logs could not be searched.  Inaccessible logs: Security.

When I hit the step into button the app continues.  Is this an issue with my SQL setup?

Thank you,

Rod