I have tried and tried and tried again to figure out what is going on. I have a HP Pavilion ZE49030US and I re-installed XP and now I have no option for Standby. When I click <Start><Turn Off Computer> the <Standby> option is there, but is greyed out. I've went to HP.com and downloaded all of the items I needed to download. After I downloaded a certain application, before I restarted my computer (Like I was told to do so), I went to <Power Options> and checked to see what I could do. I went to see if I could change the option for <What to do when I close the lid> and was able to <Hibernate>. After restarting, nothing. What could this be. PLEASE HELP!