Before contacting support, it is important that you have a look in both Continua's event log (Administration -> Event Log) as well as the Windows Event Log (Control Panel -> Administrative Tools -> Event Viewer) for entries relating to the problem you're having.
In some cases the error will be obvious enough that you'll be able to resolve the problem yourself, in others the extra information will enable us to provide you a better level of support.
Common Issues
Web page no longer loads correctly after updating Continua
It's more then likely that IIS has cached one of the script or stylesheet files, executing 'iisreset' from the command line, or restarting the website via the Internet Information Services (IIS) manager should resolve these issues.
After configuration IIS for the first time you're unable to view the Continua web page, instead you receive an error about "Unrecognized attribute 'targetFramework'"...
This error suggests that you've configured the web application to run as an ASP.NET 2.0 application, instead of an ASP.NET 4.0 application. You'll need to go back to the Internet Information Services (IIS) manager and change the Continua's application pool to target the .NET 4.0.