This is on my laptop at home : it's from this year at Sebring - turn 7. And this is my work pic - same corner from other side in '05! - that's me and my dad in the middle of the pic in red / yellow shirts.
No it's not clear, though here is a bigger one that should make it easier to see. It's subtle and none distracting. I used to have some cool 2560x1024 lansdcapes.
These t-shirts are available from www.chargrilled.co.uk if anyone's interested, but here's my current desktop: