Tvheadend

Hi Folks,

Hoping that someone will be able to assist with some strange problems I've been having...

First up here's all my specs:

Ram: 512
Installation media: SD Card, SanDisk 8GB
Connection: ethernet
Power Supply Type: USB (direct to Pi)
Power specs: RPi power adapter, 5V 1.2A
Peripherals: Powered USB hub, wireless keyboard, USB keyboard (for when I just need quick access during all this setup), 1TB external HDD (separate power supply), KWorld UB499-2T T09 DVB-T tuner (connected to the powered USB supply)
Storage Device: NAS (for video/movie playback), Ext. HDD (for eventual Live TV recording)
RaspBMC version: raspbmc-rls-1.0-hardfp-b20130208-u20130208
XBMC version: 12.0
Codecs: MPEG-2 and VC-1 (Entered using the RaspBMC settings, didn't edit config.txt)
Audio/Video Output: HDMI
Overclocked: No
Config.txt Extras: Haven't touched anything there

So for the setup I just installed RaspBMC on the SD card, and put it in the RPi - no problem.

Trying to get the Live TV working - I purchased the KWorld UB499 DVB-T because I saw it for a good price locally and LinuxTV.org says that it's supported. I couldn't find much info out there about it, but at least one person who has it working on their RPi so I thought that was promising.

I found the right firmware (dvb-usb-it9137-01.fw) and placed that in /lib/firmware. Next I ran these commands:
sudo apt-get update
sudo apt-get install unzip libcurl4-openssl-dev pkg-config git build-essential dvb-apps
I'm not sure if that was actually needed, or maybe it's caused my problems. I only did that because I was trying to follow another guide here: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=35&t=18090

I enabled TVheadend through RaspBMC, went to setup TVheadend (the web config) and can't select my TV adapter... so obviously I didn't set it up right. (I did reboot a couple of times in between all that as well.)

It sat for a while because I didn't have a chance to fiddle around with it... but the RPi had been restarted probably a couple of times, also the USB Tuner had been removed to try and use it on a laptop. Anyway - I just happened to see the TVheadend configuration page that was still open in my browser, and the adapter list was showing two options!

It was showing the adapters as "Kworld UB499-2T T09_1" and "Kworld UB499-2T T09_2". So I guess I can rule out any doubts about having the wrong firmware? Maybe it did just require a restart/unplug the USB Tuner and plug it back in. However then I tried to finish the TVheadend setup, but couldn't get any services.

Right now I've just come back to it trying to get it sorted, only now it wasn't showing any adapters at all and the TVheadend config page was loading really slowly. In between the config page was not loading at all. I tried typing tvheadend via SSH to check if it was running (it wasn't). It started and I noticed it showed the two adapters, however they still aren't showing up on the config page.

I have just rebooted the RPi to try and get a fresh start and still no adapters showing up.

Does anyone have an idea about what could be going on?
I'm thinking it may just be easier to do a clean install of RaspBMC and only add the DVB firmware and try that?

Cheers for any help on this!