problem with one datasource with new computer

Hi
after i got a new Computer with win7 (till then XP), i installed the latest jet-Version, imported my datasources from the old Installation and now i habe a problem with one specific datasource (the others work fine)
If i try to connect with that datasource, i get a message like "The SQL Server ODBC Driver on your Computer is not a recent enough Version.*********you must update to Version 2000.85.1022 or later….***"

the datasource is a NAV-4.0 SP2(4.0SP3)-database, and everything worked fine before with old Computer ans WIN-XP…

what's the Problem? the driver on the win7 (sqlsvr32.dll) is Version 6.1.7601xxx. is it "to new"..?

any ideas?

regards
jetsetter