I just got myself a bigger hard disk, after installing W2K SP3 and my
applications, there is one app. in particular which always gives me an "AV
at address ... in module NTDLL.DLL ..." upon startup. After that, it runs
without any problem.
The application in written in Delphi 7 using IBO 4de. To me, the problem
seems to be connected to IBO since all of my other apps run just fine. I
haven't changed the OS or SP, it's just a bigger HD with the same software
as before.

Can anyone give me a hint on how to solve this?

Florian