I have ibm thinkpad R51 2887 nq2 series . My system has been crashed as it is not starting.The whole system gets hang after showing the first ibm screen. The bios utility setup is not getting opened through access ibm button . In safe mode it shows that system BIOS and video BIOS is not working and it has been shadowed.sometimes the system gets started ,but after one minute ,it stucks and the whole system paused and nothing happens.It may be the virus attack on BIOS and it also changes the time and date configuration of BIOS. so what should i do .And how i can install BIOS driver to the system.