Can a server (RedHat) boot into runlevel 3 (console) with VNC available in runlevel 5 (X Windows)?

[John Calande III]

Hi,

Is it possible to have a server boot into runlevel 3 / console mode,
and at the same time have X Windows available for VNC users?

I'm asking because I've noticed that sometimes my server does not completely
boot X Windows (it stops on the screen with the Monitor Graphic), However,
from a different box, I can still VNC into the server, and can see a normal
X Windows / GNome desktop, and go about my work as if nothing were wrong.

Configuration:
Fedora 4 core

thanks for any help,