I have posted the client and error things as a attachment to the post and i have my ati radeon x1600 pro graphics card fully up to date too.
I'm sorry you are having problems.
Unfortunately, there is some subset of ATI cards that do not like Mythruna but also won't tell me what's wrong. They give a generic error: "Fragment shader(s) failed to link"
Until I try to track down one of these cards to use here and sit for hours trying one thing at a time to figure out what ATI's driver writers didn't feel like telling me, this bug is going to annoy a bunch of people.