Database error using Windows XP

Hi!

Does anyone know why I get an error message about some of my database index when accessing them from a computer with Windows XP?
It workes fine when the databases are stored on the local computer with XP but I get the error when trying to access them via the network from a computer with for instance W98. (I have no problem when using other operating systems)
Another strange thing is that I just get the error message when accessing _some_ of my databases via the network, not all of them.

The error message freely translated from swedish is "The Index does not exist. Index: TmpIndex" (where TmpIndex is the index name).
I use BDE 4.01, paradox tables and D3.

Regards
Henrik Karlsson