Audi A4 2009 2g MMI DISPLAY BRIGHTNESS DIM

Hi there,
I just bought a 09 A4 S-Line and I'm disappointed with the brightness of the 2G MMI Display screen.
I have tried adjusting the dash light control, and the in menu display brightness control, but it only seems to dim/brighten the display by a minuscule amount
Its virtually unreadable during daylight hours, and still fairly dim at night.
Just wondered if anyone had come across the same problem and had a answer for it.
Any help would be much appreciated.

Thanks in advance.

Sounds like a faulty display, I would be looking around on ebay for a replacement.

Thanks for the advice.