I read about a XP fix for YR somewhere, perhaps from Dcoder?
Edit: perhaps it's the DirectX driver.
I'm just hosting it, it was made by Saberhawk (XRML development team).
Here's a link: http://dcoder.cannis...2_YR_Update.zip
It's not a 100% fix, but it works. It also increases the game load speed. And disables CD-check on startup, I think.
Thanks.