boot up problem PLZ HELP!!!

[[teh]manwich]

hey, i built a computer about a week ago and its been pretty good and stable so far with little problems, except for one that hasnt stopped yet. after i leave the computer off overnight and turn it on in the morning, i have to turn it on atleast 3 times before the bios posts and my comp starts up normally. thats the only big problem and i dont know how to fix it. when i turn it on the first time its just a blank screen with the comp running, after 3 boot ups the bios finally comes up and runs without a hitch. i tried updating the bios but it says its up to date. so i have no idea what to do at this point. plz someone help i dont wanna risk any damages. here is my system

cpu: amd 4200x2 am2
motherboard: foxconn C51XEM2AA-8EKRS2H
vga: ati x1900xtx
sound card: creative soundblaster 2 ZS
memory: corsair xms2 ddr2 800
hdd: western digital 160 7200rpm sata2
psu: silverstone SST-ST56ZF 560w