Quote from StormFX1. Make sure you have backgrounds enabled in the ButtonFacade options.
2. Make sure it's Mangle (Bear) and not Mangle (Cat) on the bar.
Right well ya, nab mistake it was :(
didn't have background enabled at first (didn't realise the option there) and also it was a macro problem in that i had a mangle button for bear and cat but still had "#show Mangle - cat() in it, so when the macro was in bear form, it was showing the cat mangle button, hence the disabled look.... doh! :S
thanks for help :)