I have this cyborg rat7 mouse, its a gaming mouse and pretty configurable with lots of extra buttons and all that.

There's a red 'sniper' button where you press a red button on the left side with your thumb and sensitivity goes down to your preference for sniping but it seems like on Morphos, this sensitivity kicks in then moving windows with left mousebutton...?

If I'm on Ambient screen, no windows up and just move mouse around, pointer goes with the speed it should (set from mouse config)

Then, I hold down left mousebutton while moving...and speed of pointer is the same.

Then if i open a lister or window, and click on the titlebar, mouse sensitivity drops and it feels like i need 50cm of movement to move the window to the edge of the screen...is there a config somewhere that sets
window movement speed ?

I've tried it on OSX on the G4 powerbook, Ubuntu on the powerbook, and Win7 machine, without editing any prefs on either os, and mouse acts normal, this just happends on Morphos and reading the papers that came with the mouse you should hold down the sniperbutton while sniping/aiming and release sniperbutton when you want normal sensitivity

http://www.cyborggaming.com/contagion/