Ok so, it's not game breaking...it's just wierd. Since I added Dawnguard, about 1/2 the arrows I shoot at enemies are bouncing off and landing on the ground, but still doing the same damage and often killing enemies. Last night I hit 2 different bandits and vampires in the back of their heads with steel arrows....the arrows bounced...and the mobs died. Uhmm...apart from the LOL factor, is this a new bug introduced with Dawnguard? Also all my mudcrabs I kill and sinking below the ground and become unlootable....just mubcrabs.../shrug.