Problem: When logging into Web Desk in 7.7.1+ it goes straight into Self Service with no option to switch to Web Desk with browser versions later than IE7.
Cause: This is caused by IE being in compatibility mode. As a result the browser appears to be using IE7 which does not have Web Desk support.
Solution
The options below could be applied by Group Policy.
1) Turn off the 'Display intranet sites in Compatibility view' in the Internet Explorer Compatibility View Settings. Any sites which require compatibility view can be added to the list of required sites which require Compatibility View.
The following document shows how this can be set for different versions of Internet Explorer: Fixing site display problems with Compatibility View - Windows Help
2) If the option to 'Display intranet sites in Compatibility View' is required ensure that the website address for Web Access is not listed in the Local intranet zone in the Internet Explorer Security tab in Internet Options . This list tells the browser which sites are intranet sites. If the Web Access web site address is in the list of Local intranet sites compatibility view will be used for the Web Access address. As an alternative the site could be added to the list of trusted sites.