im with Kung up there, try Priming tabs, recap, and give them a shake to stir things up... but the again you said they were only a little flat so that might be to much and youd get bottle bombs, and im not even sure if you have yeast enough to carb naturally anyway... did you cold crash multiple times? or possiable stablize your beer with somthing that would kill your yeast? by the sounds of it you had it in a pressure bottle in the fridge??? and it was without equal pressure for the ammount of brew for awhile??? im guessing you had yeast drop out of solution while in your cooled pressure container, if you had any left to begin with... so Huston i dont know, you may have a problem
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