I have always enjoyed my Thinkpad T22, i.e., keyboard feel, etc. However, I have a problem which is very artibrary where sometimes it will not startup/turn on for several days. Then, you leave it set for a few days it starts up, not matter how many times I turn it on and shut it off. Is it the power supply, connection, battery? It's been doing this in an arbitrary fashion for over three years. Searching for a remedy. Thanks so much. Joe Paterick/Milwaukee