hello, need help, my problem is bios wont set may time and date keeps on resetting, am running windows 7 ultimate licensed, everytime i start my dsktop pc i got a blank screen, if i reset my bios thru jumper setting then i start my pc it will display and ask to run bios set up or load default setting. If choose run cmos set up and set my time & date then restart i get a blank screen, if choose load default setting windows 7 will start and everything run smoothly. thn if i restart or shutdown my computer it goes back to blank screen and do it again resetting the cmos and it will ask again run set up or load default setting, tried changing my battery still the same. can anyone hp me with this problem any help will gratly appreciated. thanx.