Update Rollup 2 broke remote web site

[texman8080]

After the Update Rollup 2 was installed I can not longer log into my remote web site. The main page shows correctly but when I click on the login button I get an IIS error screen stating:

 

Runtime Error

 

Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.

 

Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".