Comment 2 for bug 787859

Same problem here, maybe is a Nvidia only problem, since I can not reproduce it on the laptop (Intel graphic card). This happens with *any* application (thunderbird, amarok, firefox...) after a few minutes of work.

$ lscpu
Architecture: i686
CPU op-mode(s): 32-bit, 64-bit
CPU(s): 2
Thread(s) per core: 2
Core(s) per socket: 1
CPU socket(s): 1
Vendor ID: GenuineIntel
CPU family: 15
Model: 4
Stepping: 3
CPU MHz: 2800.000
L1d cache: 16K
L2 cache: 2048K

$ lspci|grep VGA
01:00.0 VGA compatible controller: nVidia Corporation NV18 [GeForce4 MX 4000] (rev c1)