Can't change the background image of a Tab Bar

[stephen]

I'm having trouble setting the background image on my Tab Bar. I've upgraded to iOS5 and Xcode 4.2, and the Tab Bar background image just stopped working.

I've managed to use the Interface Builder and applied a background colour, for some reason this only works for iOS5. I'd prefer to do it programmatically.

The code listing is too large to paste here, the RootViewController.h is #3249124 - Pastie and the RootViewController.m is #3249137 - Pastie

As you'll see from the ViewDidLoad function, I've tried a number of different solutions but just can't get it working.

I've been at this for a few days now, so any help would be greatly appreciated.

Regards,
Stephen