bro, have u already replaced the CMOS batt or set your bios to defaults? before you perform flashing or updating your bios, be sure you have your mainboard's manual.. refer to it on how you can update, flash your bios.. medyo delikado kasi yan if incorrectly done..
about sa AVG, i think hanggang Jan 17 2007 na lang ata free.. may nag pop up kasi sa pc ko.. try ko nga mag avast..