Well, I just installed Leopard on my custom PC for the first time, with minimal issues (my sound card isn't supported so I have to use the built mobo one, and my wireless isn't either).
However, every time i click a menu, instead of text appearing, there is nothing. When I roll over to where the text should be, nothing shows up.
Is it due to the transparency of the 10.5 menus that's screwing with me? Or is it another issue completely?
Maybe you don't has QE/CI on videocard.
Try reinstall looking for options to enable it.
Leo4All v3 has a good compatibility with most videocards.