Nyways, I'm sure some warriors can agree with me on this one, I'll be playing GW killing junk and stuff and all of a sudden my adrenaline skills aren't charging

I had no hexes or spirits or nything on me, and I can still use my adrenaline skills but the game doesn't show they are charged; therefore, attacking can be a real pain...
Does nybody know what causes this? Also, is there any way to fix it-I heard taking off ur weapon and putting it back on sometimes cures the problem, but so far it hasn't worked for me.
I've had this problem cured one time just randomly it glitched for about 2 minutes then went back to normal...Usually it lasts until I either enter a town or log off of GW, can nybody help me?