The trouble with cave spiders...

Is that they do stuff like this. I will probably have nightmares about this tonite:

Well, this is because the spawners not only 'spawn' monsters inside the room where they are placed at, so a good idea is illuminating the surroundings of the room where the spawner is set
This is even more scary with that texture pack you got, i almost feel like they are at my feet now :S

BTW: Nice pc you got there, using ubuntu is awesome already, but your pc runs minecraft, couple firefox windows and other stuff just well with 25% ussage, bad-ass pc you got there

OO!!!!! fun!! can I killed them for you? I wanna give one a hug!

Those spiders are all really inside the tunnel -- they are just totally glitched out!

OW, then that's another story May i know what is stopping them from moving? i believe i made one of those xp grinders once and it worked just fine :S

That's what I'm trying to figure out now, actually. it was working fine earlier today, but this afternoon they all refuse to take the drop like good little spiders and clog up the tunnel.

Is there a block on top of the 'exit'? they need a block on top of it in order to make them jump

We made that whole section of the tunnel one block high and put a "roof" over the exit. That seems to have fixed it right up

I hope y'all don't forget to use up all your Xp before tomorrows adjustment by Justin.