**System Information**
Linux Mint, Quiana, 64bits, Cinnamon
Nvidia 9800gt
**Blender Version**
Broken: 2.72b
**Short description of error**
Can't select horizontal edges on edit mode
**Exact steps for others to reproduce the error**
When I use the edges selection on edit mode, I can't select the horizontal edges on screen, but if I rotate on screen then I can select this edges.
I try in other PCs, but I can't reproduce the error. It works perfectly on others PCs with Windows 7, inclusive on the same PC but booting with Windows7.
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