Have played this gam several times with no problem..now in Gahreesen, when I go to jump to the black rock, even though momentarily I land on the rock, it then quickly changes to me fallinf down the crevice...I am wondering if I need to change my hardware acceleration? If so, I need some directions as I forget how to do this...Thanks for any help you can give me. Jane

It does sound almost more like a glitch than anything else. Falling through the surface of things happened to me a couple of times in Uru, but then when I tried again, I didn't have any problems. You could try going into the options menu (I believe it's a wrench icon at the bottom right of the screen) and changing the graphics options and seeing if that helps.

Thanks, Becky.