I have a Packard Bell IPower 1475 running Windows ME with Pen 4. Recently I installed some extra memory - going up from 128 to 512 and since then, whenever I start the pc - the screen hangs on the Packard-Bell logo. If I then press the power button and shut off the power, followed by switching on the power again almost immediately, it starts up normally. Can anyone please explain what's going on ? I checked in the control panel for power settings and they are all set to "never" - ie never hibernate etc.