FOSS gamedev and creative worlds

Ok so on 20120606, I'll walk around, do normal stuff, and the game will all of the sudden not register what's happening or just crash. I.e. I'll build with say 8 cobble and the count won't go down so I technically have unlimited of it. Then the game will suddenly crash. This only happened after my friend came on my server. The mods I'm using:
3dforniture
animals
beds
crystal
cyro
diamonds
fire
moreores
obsidian
sethome
stairs
tv
wool
worldedit
xdoors
xfences
xpanes

Anyone know a solution?

hmm maybe try not using as many mods, that may help a bit ;)

Well no I'm using all those mods and more in a different game (not world, game) and it works fine there.

oh... maybe try changing the video drivers?

I can't help with the crashing, but 20120606 doesn't contain the code needed for those nodebox-based mods (3d furniture, xdoors, xpanes, xfences) to work. You need a build or git pull of June 17 or later.

No node boxes are working perfectly fine. This is latest nightly.

Did you update more ores? It fixes crashes when going near -512 altitude.
Also, some mods are quite outdated and might cause crashes. Try removing the animals mod, maybe.

Was the Fire mod was necessary at this build ?

No, the fire mod is in the default game.