Big Problem I Need Help Asap

I have a nokia 6260, i have had the phone for 4 months now with no problems.
This morning the alarm on my phone woke me up as normal, then i swithched of the alarm. Then i tried to make a call but my phone was frozen just like windows 98. I switched it off but nothing so i had to pull out the battery. I inserted tha battery and turned it on and saw the NOKIA logo on the screen. After looking at the logo for 2min the screen just went white and has been white the entire day. What must i do to get it working again? I have pulled out rs-mmc card and sim yet nothing. PLEASE HELP