Asus P5GC-MX BIOS Protection ?

[biosmods28]

hi there.

ive got the following problem. have problems with my router since some time and someone always injects malicious stuff to my pc. im still figuring out how to prevent it since im not really sure how its done...

the problem i have is, that sometimes, i get injected some kind of BIOS virus. cause whenever i want to start the pc after that happens, pc just shuts down 2 sec after booting.

i can handle it with removing the battery and setting the CLRTC jumper, but it still sucks cause it takes some time and i dont wanna do that everytime...

so which ways r there to protect the bios with this board ? i mean beside setting a pass.
or are there any software solutions ?

im using a MEDION ASUS P5GC-MX with a intel e4300...

thanks in advance....