That is what the top plate is designed to do. Underneath the plate is some foam rubber, which gently presses down onto the top edges of the h-cards, to keep them steady.

I apologize! I had forgotten what it's like working with competent people.

On a side note, anyone else have problems with the inductors on the v2.2 boards? About a third of mine look like they where attached by someone who was drunk. I am leery about using them because the housing is butting up against the solder joints of what look to be decoupling capacitors next to it. I didn't progress far enough in electronics to make it to EE level comprehension as to how bad this is usability wise. I hope these things don't fry my rig...
