My touchpad seriously misbehaves under the 2.4.21 kernel. under X I get a very slow response (I need to set the sesitivity and acceleration values to max to get somewhat proper behaviour). Under gpm in the console its mostly unusable since when it does respond it just jumps too far. Its the touchpad on a sony vaio pcg-fxa53 laptop (the pre jogdial laptops). I compiles the mousedev as a module if it matters.