you should be able to disable your sound on the setup menu... and disable the sound on your motherboard bios. That would at least tell you if it's a sound problem or not.
Tho... I really think it's not a sound issue at all...
Try These settings:
Computer: 1024
Optimized: Display Lists...
Here's mine
I remember having to figure out what axis is what.... I ended up having to write down which axis were correct and which were incorrect.. then i'd change 1 in the cofig, then see what was fixed or not.
Just mess with these lines:
<axis name="x" joystick="0" axis="0"...