Comment 9 for bug 1503310

I have this problem too, I have to move the scrolls or drag the window or something like that to make the window refresh.

My environment:

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.5 LTS
Release: 12.04
Codename: precise

$ uname -a
Linux kandor 3.2.0-97-generic-pae #137-Ubuntu SMP Thu Dec 17 21:37:53 UTC 2015 i686 i686 i386 GNU/Linux

$ nvidia-smi
Thu Jan 28 14:30:31 2016
+------------------------------------------------------+
| NVIDIA-SMI 340.96 Driver Version: 340.96 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce 210 Off | 0000:01:00.0 N/A | N/A |
| N/A 43C P0 N/A / N/A | 457MiB / 1023MiB | N/A Default |
+-------------------------------+----------------------+----------------------+

It happened after I installed the latest updates, including a kernel upgrade.