Arrows not staying equipped

[Damondred]

I prefer using a bow when playing Oblivion so I added some arrows and a bow to the beginning of the game. For some reason I cannot keep my arrows equipped. I manage to fire 2 arrows before they unequip, then I must go into my inventory to equip arrows to continue firing. Another problem is the Cave Trolls cannot be looted in the beginning. Not much of an issue but I would like to get my arrows back afterwords.