yesterday my vamp got diseased.....they're undead so not supposed to happen heh. also didn't loose ne xp when i died.

What mob diseased you? I didn't see anything immediately wrong with disease code, but I did make it so those immune to disease won't take damage from it anymore, just in case they do get diseased.

Of course, since you got diseased, your character probably failed the immuneToDisease() check, and this extra code won't do any good...

it was wererats down in the hp tunnels, well a while back when i used to play my vamp, i notice that under poison save it was n/a but now it just says normal.

It was tricky, but it's been fixed! I traced it down to a syntax error in isUndead().