These days I've changed mma from MS-Windows to Linux. Now, when I want to select a cell in my notebooks, all cells get selected. I'm not able to select only one cell.
Also I cannot select parts in the cells. My mice is shown as a small hand like in an Akrobatreader. With this hand I only can move the whole notebook, but I cannot select one ore more words to copy them.
How can I change this?