R8 Computer / Stalk malfunction

[NorthernBoy]

My recently bought 2009 R8 won't cycle through the computer functions, and it feels as though it could be the switch itself in the stalk that's failed (no feeling of a "click" or movement when pushed).

Has anyone had this happen and / or had it fixed, and is it something worth having Audi deal with, or could I source and replace a stalk for less than the cost of the Audi "diagnostics" at £60 (and presumably plus VAT)?

[NorthernBoy]

Thanks, I've sent the reg number over to you.