a600hz07-23-2010, 10:07 PMlol did i say plasma? i meant to say LCD, I have an eliptical, bike, and treadmill, both have large screens and a small piece of plastic on the bottom to hold something except for treadmill, but honestly i do not have problems with shaking.. my brother use to just have the keyboard tied to the bike and the mouse next to him on a table, the laptop would be on the table alon