I would be playing for awhile just fine until I exit nexuiz and go do something else..when I open it again all I get is a black screen. So I reboot not being able to play nexuiz, thinking it will fix the problem. But, when I open nexuiz again everything is fine until I start playing I find there is texture-less weapons and models. Like this,

I have deleted my config.cfg and tried playing again and it fixes it temporally but after awhile it goes back to doing the black screen. I also tried re-downloading nexuiz and trying it but the same problem happens. I've used svn and regular 2.4.2. oh and btw when you do vid_fullscreen 0 /un-mark the full screen box and hit "apply immediately" it crashes nexuiz.
If any one has an idea what may be wrong please help.
Thank you.