ok so my computer has become abit weird and i noticed this problem today although this maybe happening for 2 days or so. i have windows XP home edition service pack 2 on my laptop the problem is "stand by" mode is not working.....i can click it but nothing happens. secondly if i click on "turn off" the computer doesnt turn off but goes to stand by mode. if i press the power button then it switches on from stand by mode then finally shuts down properly. after it shuts down above then when i press the power button again the computer starts as normal. the only new thing i have done recently (2days ago) is install a new HP all in one (printer) directly through a USB connection............maybe this has caused the problem?? any ideas? and how do i fix this so that the stand by works normally and so does shut down. thanks so much.