I have installed MicroStation V8 2004 on my XP pc. However I have noticed that parts of the drawing disappears when I zoom in\out. I have installed the latest graphic drivers but the issue remains.
Any ideas on what I should check next?
One of the issues that could cause such behavior is that elements partly are off the design plane.
You could do a quick test by running Verifydgn.ma:
As the above tool could provide some help, best is to log a service ticket against this issue via the online service ticket manager, so that the colleagues in TSG can contact you and have a look at the file.
Service Ticket Manager: