ipaq won't switch on

I've an ipaq 1930, which until now has been working flawlessly (it get very heavy use, every day).
In the last week or so, it will now not switch on when I press the power button. There's plenty of charge, and I nmay have only turned it off a few minutes earlier, but it will not work again until I soft-reset it. This can happen from 1 to half a dozen times a day now, and it's becoming frustrating...
Has anyone else encountered this problem??? Help!
In the last week or so, it will now not switch on when I press the power button. There's plenty of charge, and I nmay have only turned it off a few minutes earlier, but it will not work again until I soft-reset it. This can happen from 1 to half a dozen times a day now, and it's becoming frustrating...

Has anyone else encountered this problem??? Help!