Pavilion p6-2133w - Wont post/boot without clearing cmos first

I really need some advice guys. My dad just recemtly bought this computer from a friend (friend says it had no problems) which could be true.
I did a fresh format after downloading all drivers from HP, installed them all incuding the bios update (which i think is my problem) and now i have to clear cmos every single time before it will boot or even post, if i dont clear cmos the computer does turn on (fans have power) but the monitor stays black. When i do clear cmos the pc boots fine and the only thing i notice wrong is some files wont download thru IE (like adobe flash, says no internet connection when the adobe installer trys to download) and im getting constant sec.certificate display blocked errors thru IE other then that it runs fine.
So im assuming something went wrong installing the bios update, im praying somebody has or even knows what the original bios is supposed to be ? or someway i can fix it. I have since done another format and tried reinstalling the bios update and all other drivers but nothing changes
Any advice, opinions, or idea's would be greatly appreciated
Thanks in advance
Vito

I really need some advice guys. My dad just recemtly bought this computer from a friend (friend says it had no problems) which could be true.
I did a fresh format after downloading all drivers from HP, installed them all incuding the bios update (which i think is my problem) and now i have to clear cmos every single time before it will boot or even post, if i dont clear cmos the computer does turn on (fans have power) but the monitor stays black. When i do clear cmos the pc boots fine and the only thing i notice wrong is some files wont download thru IE (like adobe flash, says no internet connection when the adobe installer trys to download) and im getting constant sec.certificate display blocked errors thru IE other then that it runs fine.
So im assuming something went wrong installing the bios update, im praying somebody has or even knows what the original bios is supposed to be ? or someway i can fix it. I have since done another format and tried reinstalling the bios update and all other drivers but nothing changes
Any advice, opinions, or idea's would be greatly appreciated
Thanks in advance
Vito

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