When you remove the 2 screws, you should be able to grasp the panel (at the edge where the screws were) and pull the panel out. there are clips at the vents and 3 (I think) on the bottom of the panel....you should be able to pull it right out.
Pull the top first (where you removed the screws) then grab the bottom of the panel (where the inst. cluster is) and pull, then pull at the right vent, then the left vent...it is really a game of a bit here and a bit there (a little at a time).
NEVER FORCE PLASTIC. It will come out with a little patience. Pull here, then there, then here, again.