I have a a Dell Latitude E6510 running Ubuntu 10.04.3. When my wife types emails on Thunderbird 3.1.15 the keyboard freezes up on a regular basis. The only solution is to re-boot. She types rather fast (60 wpm). Now when I type (with two fingers - hunt & peck style) I don't seem to have this problem. It seems to me that the typing speed should NOT cause this.

Any help would be appreciated to explain/solve this.