Compare Module Results

I have created a query that includes a module that determine what the actual order date should be. This works correctly. Now, I want to take that date in another query to only show rows where RPODate exceed the recommended date.

I keep getting an error stating the query is to complex. If I run it without the >Checkdate in the criteriea for RPODate it's fine.

Any ideas?

Query 1 with module
SELECT qryInstallationRPOrdered.ProjectID, qryInstallationRPOrdered.Phase, qryInstallationRPOrdered.Unit, qryInstallationRPOrdered.Tract, qryInstallationRPOrdered.Release, qryInstallationRPOrdered.DelDate, qryInstallationRPOrdered.InstallDate, qryInstallationRPOrdered.State, qryInstallationRPOrdered.RPODate, qryInstallationRPOrdered.NVDate AS CheckDate
FROM qryInstallationRPOrdered
WHERE (((qryInstallationRPOrdered.State)="NV"));


Query 2
SELECT qryInstallationRPONV.ProjectID, qryInstallationRPONV.Phase, qryInstallationRPONV.Unit, qryInstallationRPONV.Tract, qryInstallationRPONV.Release, qryInstallationRPONV.DelDate, qryInstallationRPONV.InstallDate, qryInstallationRPONV.State, qryInstallationRPONV.RPODate, qryInstallationRPONV.CheckDate
FROM qryInstallationRPONV
WHERE (((qryInstallationRPONV.CheckDate)>[RPODate]));