odbc (64-bit) problems in Windows?

Hi, I reinstalled MonetDB as well as the ODBC driver after last week's update to SP2. How could I troubleshoot my system if I get a Memory allocation error SQLSTATE=HY001 if Stata would query the database? Otherwise I do see the data source listed, both in Stata (with -odbc query-) and Microsoft ODBC Data Source Administrator. (The latter lists the database under System DSN with the right name, platform and driver.) Thanks, Laszlo