Limitation of column count in BO?

Hi,

I am unable to access a field of a table in a pervasive db with help of Information Design Tool.

The field is not even shown in the list of tables.

The issue might be that this table includes more then 280 fields/columns. Do you know if this is a limitation of IDT or would there be a work around for this?

Btw: we are using BO 4.1

thanks and best regards

Alex