BO-BI-Universe Date change format

Ingo,

I had created a webi report on SAP BI Query and i changed the date format for one for that object in the Universe level and when i'm running the report I'm getting the below error only after fixpack-2

A database error occured. The database error text is: (CS) "Driver not capable" . (WIS 10901)

Plz suggest me .........