I just installed windows XP professional and I just downloaded and installed SP2 and did windows update. I have a gateway computer that came with XP and I had hibernate and standby. Now, neither of them are available. I went under the power options and it says nothing about hibernate mode. When I go to shutdown the computer there is an option for standby, but it is greyed out so I cant click on it. I cant find any downloads from gateway to fix this. What do I do? Thanks!