VNC access when MAC is asleep

I have a home network with both PC’s and MAC’s. I have no trouble using VNC to access either one with one exception. When the MAC is asleep, I cannot log in to it, unless someone there touches a key and wakes it up. Details which might be pertinant are: I’m running OSX 10.3.1 on a G5 with dual monitors. I also note that when I am at that computer, moving the mouse does not wake up the computer, so perhaps where I need to look is in the sleep settings, but I’m not sure where to begin. Any help would be much appreciated.


Please go here:

It will get you started in the right direction.