Rust Menu Does Not Appear

I get the background picture and the animation but no menu, at times it freezes and the sound is a like a skipping cd, but if i wait about a minute it returns to normal, then other times it never freezes at all and is like a screen saver…

PC specs
Win 8: 64bit
Windows Defender & Firewall
8gb ram
AMD ATI Radeon HD5700
AMD Phenom II X4 955

Version: Rust Development; Experimental

Tried: Verifying Game Cache
: to change the GUI to ingame then back to menu
: Uninstalling then reinstalling, opting out of Beta.

legacy or exp?