Problems with V7.0

[Richard-1]

Hi All
I'm in the progress of migrating from Linux MDV2008 but I've hit a big 
install problem.
The original graphics card was a Nvidia FX5200.
Running Xorg -configure found it the first time and X started.
I then managed to get KDE running but I use Gnome, so I loaded gnome
and edited rc.conf to use gdm instead of kdm.
And I goofed at that point by missing out one of the quotes . 
so when FreeBSD V7 was rebooted it hung.
I managed with help to mount /etc/rc.conf and edit it, but then
problems.
Xorg would not start properly, with a fatal message of cant find
screens.
running Xorg -configure failed repeatedly not knowing which driver
to load.
I've manually edited xorg.conf with know good setting from linux, where
the same card is used, but still failed on no screens found.
So next was a complete re-install, and the same happened again.
In case it was the graphics card I bought  new PCI Express Nvidia 8500T
which allegedly uses the same xorg driver "nv".
Now I have two graphics cars that Xorg -configure cant find.
Both cards are found without any problems when linux is running.

I can't understand why on the first install the card was found and
configured, but on all subsequent installs they both  fail.

Ideas please

Also are there drivers available for my DVB-T card :-
 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video and
Audio Decoder (rev 05) Subsystem: Hauppauge computer works Inc. Unknown
device 9002 Flags: bus master, medium devsel, latency 32, IRQ 18
        Memory at fb000000 (32-bit, non-prefetchable) [size=16M]
        
Multimedia controller: Conexant CX23880/1/2/3 PCI Video and
Audio Decoder [MPEG Port] (rev 05) Subsystem: Hauppauge computer works
Inc. Nova-T DVB-T Model 909 Flags: bus master, medium devsel, latency
32, IRQ 18 Memory at fc000000 (32-bit, non-prefetchable) [size=16M]

         Multimedia controller: Conexant CX23880/1/2/3 PCI Video and
Audio Decoder [IR Port] (rev 05) Subsystem: Hauppauge computer works
Inc. Nova-T DVB-T Model 909 Flags: bus master, medium devsel, latency
32, IRQ 9 Memory at fd000000 (32-bit, non-prefetchable) [size=16M]

I saw mentioned while googling someone was working on them, what is the
status ???



TIA 

Best wishes

Richard Bown