Can't login in to Service Desk

Can't login in to Service Desk

We were trying out Service Desk Plus and for some reason it is now not allowing us to login.

We still have the default password for administrator, but when we login in  the page just flashes really quickly and then returns to the login with incorrect username or password.

We are connected to MSSQL on another server and have this installed on Windows 2008 R2.

There are no errors in the event viewer.

Any Suggestions?

thanks
Wil

                  New to ADSelfService Plus?