If you let the power on longer, can it reduce the number of times you need to power on/off?
It looks like the BIOS batry need to be replaced. It's weak, but it regains some charge when the power os on.
Open the case.
The batry is silver, about the size of a nickel and flat, barely thicker than a coin. It fits in a round, black holder with a metallic side clip.
Take note on whitch way it's in.
Pull the clip away from the batry. Your nail, a thootpick or a paper clip should be enough for that.
It will "jump" out by itself.
Get it out and find a replacement. Place the new one in place.
Electro, May 2011