how to change the application's trust level?

[Rishi]

We are developing an application in ASP.NET (Ms visual studio 2008
- .net framework 2.0). There are 4 developers involved in this project
and they will work separate nodes. The application source code will be
stored one server (Web Server). There no problem while open the
solution in multiple nodes, and all of them can modify. We are facing
the problem while running the solution in other then server node. This
solution is running in only on the server (where we've maintained the
source code). In all other nodes showing security related errors.

Error Detail:
The Application attempted to perform an operation not allowed by the
security policy. To grant this application the required permission
please contact your system administrator or change the application's
trust level in the configuration file.

Pls help us how to overcome this issue?

Regards,
Rishi