BDE 4.51 and Timestamp parameters

Hi.
Does anyone use Centura (6.x or 7) through BDE 4.51?
When I try to bind a DateTime parameter I get a "General SQL Error.
Timestamp parameters with zero scale must have a precision of 13, 16 or 19.
Parameter number 2, precision 1."
The query works fine with BDE 4.0, and it works fine if I bind it as a
String, e.g. ParamByName('WhatEver').AsString := DateToString(). But it
won't work if I have a master/detail relation.

Greetings,
Michael Lekrans