BDE error $2A04

We have just converted our D1 programs to D2 and after a few connects
(this is on a web server) we get the error  -
        An error occured while attempting to initialize the Borland Database
Engine (error $2A04).

Has anybody else had this problem or know of a fix.

We are running D2.01 and Oracle 7.2 on Windows NT 3.51 SP4. A collegue
also runs a similar environment but uses MS SQL Server and also gets
the same error.