Gigabyte GA-880GM-UD2H : Not Showing Native Resolution on LG TV

[Indius]

hi,
I have a Gigabyte GA-880GM-UD2H and it's not showing the native resolution, 1080p, when connected to a LG TV.

• MB: Gigabyte GA-880GM-UD2H Rev:1.0
  GPU: Integrated ATI Radeon HD 4250 )
  CPU: AMD Athlon II X2 240E
  OS: Windows 8.1 x64.

I went to the Gigabyte Site and downloaded all the drivers for the board.
http://i.imgur.com/tYhj8SK.png

It just showed 4 drivers.
AMD Chipset Driver (include chipset \ sata raid driver)
Realtek LAN Driver
And 2 SATA RAID/AHCI Drivers.

I installed the AMD Chipset Driver with all settings ticked.
http://i.imgur.com/BaEQwjn.jpg

Screen re-calibrated a few time during install but the resolution is just showing 1024 x 768, with options available for 1152 x 864 and 1280 x 1024.
http://i.imgur.com/YcSJqQH.jpg

No setting mentions ATI Radeon HD 4250 just Microsoft Basic Display Adapter and and Generic PnP Monitor.
http://i.imgur.com/ZGSS3W0.jpg
http://i.imgur.com/kjUGrzW.jpg
http://i.imgur.com/TPxBRQX.jpg

In Windows Device Manager it says the same thing:
http://i.imgur.com/o9S03Xe.jpg

In the AMD Vision Engine Control Center no option is given to change the resolution:
http://i.imgur.com/YaTGZKV.jpg

I tried Gigabyte's driver scan utility and also tried the ATI 4250 software from ATI but no luck.

Anyone any idea what's wrong?

thanks
Indius