SQL 2008 R2 Cluster Setup - Error

Hi,

I'm trying to deploy an SQL 2008 R2 Cluster, but I am getting an error each time I try the install, the error is as follows:

The following error has occurred:

There was an error setting private property 'VirtualServerName' to value 'RPMSSQL' for resource 'SQL Server'.  Error: Value does not fall within the expected range.

I have tried to run this both on Windows 2008 R2 Enterprise  and also on Windows 2012, but both fail at the same step.

Is there anything you could suggest to fix this error please?

Thanks,

Trevor