vauxhall vectra 51,reg,tripple info warning light?

can anyone help me,i have a fault light under my radio dash,its orange,round,with markings round it like the handbrake warning light, but no markins on the inside if the circle. it comes on intermitant,i thought it was a front light bulb,wich had blown,but since replaced,the light keeps coming on,the manual(gloveboxed) does not say what it is,but only tells me about another two,all my lights work and everything else seems to be ok,can anybody tell me what the light is for,its under the text cd(when playng a cd lol) on the radio section of the dash,the only thing my manual says is a light for tilting headlamps and auto trans,but mine is manual,an not the same icon as those two.

big dave
March 2008