[Winpcap-users] Install problem

[andrew.phillips at bt.com]

I have a strange install problem. 
I have winpcap_4_0_2.exe installed successfully on several machines.
However, when I try to install it on one server running Win2003 server,
the installer opens a window, but the window stays grey then disappears.
Nothing else happens, until you log off and log back on again, then it
tells you that winpcap has encountered a problem and has exited?? Server
is a Dell2950 with Broadcom BCM5708C netXtremeII network card. I have
this installed fine on a Dell 2850.
Any ideas?