lenovo 3000 G410 bios display or boot display problem

[mangeshsakhalka]

Hi

I am having lenovo laptop model 3000 G410. The problem I am facing is am not able to see the initial boot screen( memory count or Press F1 or Press F2 to enter Setup ) menu screen. if I continue windows will boot & I can see the screen from welcome to windows screen. If I try to boot from bootable CD/DVD the screen remain blank only.  if I try to press F1 and F2 or even F12 for changing boot sequence display doesn't appear. But after booting in windows it is working perfectly.

Please guide me

Thanking you in advance

Mangesh

[yigit]

could be bootable dvd/cd issue. can you check if the disks work properly? ( with another computer )

[mangeshsakhalka]

cd /dvd is working fine in another system , i am unable to see Bios also 

[yigit]

have you made hardware changes recently such as flashing bios?