So, how many times has this happened and how often?
And so far, the only way to fix it has been a PRAM reset?
We've got some other hardware guys around, what do ya'll think?
Is there a battery on the systemboards in these things like there is for desktop systems that may need to be replaced?
If you do not restart it but keep on using it does the screen ever mess up?
How did you install Leopard - it may or may not have any bearing.
And you also have the X1600 video card?