> i tried to create a foreign-key-reference using fb_client.dll (actual fb
> 1.5 release) and got an error like "...index unexpectedly deleted".
> so i tried my old gds32.dll (from 2004) and it works fine.

Can you provide some more information about this case? What is your
configuration, what did you do, is it reproducable, etc.?

Thanks!
Roman