To Cas: I don't know if these problems are already known, but I'll describe them anyway...
1. I have two monitors (using two graphics cards). When I run games in fullscreen mode the secondary monitor is disabled and I see the game only on the primary monitor. This way the mouse movement is constrained only on the game "surface". When I go fullscreen with LWJGL, the primary monitor goes normally to fullscreen mode, but the secondary is still enabled. Because of this the mouse can still move on the second monitor and it gets really ugly.
2. Upon calling Mouse.enableBuffer(), I get the following error:
Exception in thread "main" java.lang.UnsatisfiedLinkError: nEnableBuffer
at org.lwjgl.input.Mouse.nEnableBuffer(Native Method)
This happens all the time, no matter what.
My system: WinXP, JDK1.4.1_01, LWJGL 0.3, GeForce 2 MX. My mouse is optical (I don't know if it has something to do with the buffering problem).