IM004:[microsoft][ODBC Driver Manager] Driver's SQLAllocHandle on SQL_HANDL

Hi,

We have been using Crystal on win XP for quite some time and the time has come to upgrade our client base to Win 7 - Almost everything is working except Crystal Reports.

Whenever we try to connect to our database we're getting the below message...

Logon failed.

details: IM004:[microsoft][ODBC Driver Manager] Driver's SQLAllocHandle on SQL_HANDLE_ENV failed

The connection succeeds through the Windows ODBC Data Source Administrator but will not work through Crystal.

We are using a trial version of 2008 with SP2 applied, and trying to connect to an Oracle 10g DB - if we can get this working we can tick it off the list and move forward with a purchase of 2008 for W7 (we're currently at version 10 on XP)

Thank You