CR9, RDC, Running reports concurrently fails

[AptToWonder]

Crystal reports 9.2.3.611,
RDC: CrViewer 9.2,
RDC: CRAXDRT 9.0

I get a message any time I try to open two reports simultaneously:

Query engine error: 'HY000:[Microsoft][ODBC SQL Server Driver]Connection is busy with results for another hstmt'

What's up with that?

 

[AptToWonder]

Oh, my apologies.
Delhi 6, MDI.