I copied and modified the OS: Not latest Service Pack Win2008 R2 and changed the Web40OSName to 'Win 7' and all is well again.
Select Top 1000000 tblComputers.Computername, tblComputers.ComputerUnique, tblComputers.Domain, Web40OSName.OSname, tblOperatingsystem.Description, tblOperatingsystem.ServicePackMajorVersion As [Current SP], tblComputers.Lastseen, Web40OSName.Compimage As icon From tblOperatingsystem Inner Join tblComputers On tblOperatingsystem.Computername = tblComputers.Computername Inner Join web40ActiveComputers On tblComputers.Computername = web40ActiveComputers.Computername Inner Join Web40OSName On Web40OSName.Computername = tblComputers.Computername Where Web40OSName.OSname = 'Win 7' And tblOperatingsystem.ServicePackMajorVersion <> '1' Order By dbo.tblComputers.Computer