I too had DirectX 8 problems. Fortunately my brother solved it somehow...he says he uninstalled then reinstalled RS and told it to install DirectX 6.1. Somehow this seems to have installed both at once, because RS works now, and I have DirectX 8.
DirectX 8 is very buggy.
And just ignore our little Imperial turncoat Moff Kiwi. He likes driving people nuts.
At last we will reveal ourselves to the Jedi.
At last we will have revenge.