Rust Graphic issues - Please help asap!

[zand89]

Hello so a picture says more then 1000 words :/
[url]http://i.imgflip.com/4ho9c.gif[/url]

Well, Ive got these weird graphic issues, please help!

My system
i7 3770k 3.5Ghz
Radeon 7970
16 Gb ram
...

[x13x]

[url]http://facepunch.com/showthread.php?t=1320082[/url]