Thats normal. Protection and tanking doesnt need stance dancing, you can do almost everything in 1 stance, the only time you could ever want to change is if you want to turn on recklessness (not needed for pve tanking) or hamstring (again not needed for pve tanking).
The only time you need to stance dance nowadays is when you pvp, otherwise in pve you mostly stay in 1 stance, except for arms pve you will change zerker stance on bosses thats 20% or lower, rest of the time you stay in your spec's optimal stance. Warriors have been made really easy to play IMHO, it used to be harder than it is now.
PvE geared we started arena:
http://www.restricted.co.za/upload/WoWScrnShot_010911_142000.jpg
Thats with blue pve gear!
Warriors aint that hard. Stop QQ and actually start practicing, once you get the feel for it after doing it for a while you realize just how easy it is.
Charge -> howl -> ms -> SS/BS -> collect conquest points.