ExtJs Grid Acting Very Strange

So I have two pictures of the weirdness that is occuring.As you can see in the picture above, the scroll bar on the right hand side is being cut off a little bit by the screen, and even when you scroll to the right, you don't get the bar back, it remains cut off.

Here is the other scenario:

Here, you can see that when I scroll down in this grid, the scroll bar kind of fits into the bottom of the grid and doesn't even go all the way down. You need to manually click into the grid and hit the down arrow to get the rest of the way down.

Edit: Here is the code to generate the grid (Ext created through VB controls):

Dim VehicleOptionsGrid As New Akcelerant.Framework.WebControls.Grids.Grid
With VehicleOptionsGrid
.ID = "VehicleOptionsGrid"[code].....