Hi I have a annoying problem with my eclipse/ubuntu System.

Sometimes when I try to copy paste : mark a variable or some text with the touchpad press strg+c, mark target press strg+v, it doesn't work and copies some old stuff a copied before from the clipboard. I installed Parcelite to check what happens in the clipboard and it seems that eclipse/ubuntu doesn't realize some copy commands.

If I press strg+c repeadetly before I paste it works, but its annoying and I want it to work immediately.

Does anyone know a solution?
Is this an eclipse or ubuntu bug?

System: Fujitsu Siemens Amilo Pi 2530 laptop
Ubuntu Version: 11.04 (ubuntu classic instead of unity)
Kernel Version: 2.6.38-11-generic
Eclipse Version: 3.5.2