Nokia :: 5230 - Voice Command Thing Is Preventing From Listening To Music

I just bought this phone yesterday and I am already unsure if I made the right decision. The phone has only 70 something MB memory, of which 28 or such is taken up b the apps. There only 50+ plus mem left. There aren't any sounds or images preinstalled in this phone (not a single one).

Now this Voice Command thing is preventing me from listening to music. At first, whenever I switched the radio on, it asked me to activate the Voice command feature. Now when I selected it, it keeps on displying "Speak Now" every 4 seconds, interrupting the whole music. I try to speak commands like radio, but it doesn't work.Can someone guide me? I am getting frustrated by this frequent disturbance, everytime I switch on the radio.