We have never had a problem with any LCD's in our B while driving. They seem to get a pretty gentle ride even when the road is a little rough. Heidi is often on her netbook while we are cruising down the highway, the LCD for the backup cam looks just fine, the TV which is mounted on an arm over the bed also rides very well.
I had a toyota class C a few years back with air shocks that made the ride very rough. I had a PC stored on the floor under the table and it died pretty quickly from the shock of heavier bumps in the road. Laptops are a bit better at handling mobile situations.
-Mike & Heidi
97 Roadtrek 170P "Taj Ma Trek"