Along the veins of dstrakele's advice above, be aware that the G74 has no backup/dual BIOS as is found in many desktops. The consequences of a bum flash for the G74 are a bricked computer that can only be rescued by the aggravation of shipping it back to ASUS. My extremely related pieces of advice Rulito are:
1) never flash the BIOS unless you're sure it will address a particular problem you are having. The old saying "if it ain't broke..." applies here. In this case you perhaps need the numlock on so its worth the attempt.
2) never ever flash the BIOS from an operating system like windows (*any* OS), even though ASUS makes a utility for you to do so. Risky...
--
G74SX-CST1-CBIL, i7 2630QM 2GHz
32GB DDR3 RAM @1333MHz
GTX560M 3GB DDR5 (192 bit)
17.3" LED 1920x1080
Sentelic TP, BIOS 203
Debian Linux Wheezy (Testing) Kernel 3.2, NVIDIA 295.40