yaun-ti temple

[vitosqueo]

im in the yaun-ti temple and there are these traps to the left of where you begin. one is where the walls slam in on you the other is a little northwest of that in the hallway where the blades come out of the ground.
how do you disarm these. my rogue doesn't detect them and i can't disarm them. is there some other way to disable these. the pools of fire and acid have levers so there easy. any advice?

[Crucis]

How good is your rogue? Does he/she have lots of SP in Search, as well as a lot of points in Disable Device? Is he/she a somewhat pure rogue or one of these Wizzy X/Rogue 2 characters that tend to take the attitude of "I'll disable the easy traps, try to use mirror image on the not-so-easy ones, and just let my high HP tank suck up the damage on the Toughest ones"?

I've never had any serious trouble with that trap with a truly good rogue, but I can see that a marginal rogue might have trouble if he's only good enough to deal with the easiest of traps.