Selecting vertices in solid mode selects random vertices? I've been having this issue since I started using Blender, but just kind of went along with it. Now its becoming a genuine issue though. Whenever I select vertices in Blender (Box select, Lasso, C, etc) While viewing the object in Solid mode, Blender also selects other random vertices.
I'm using 2.78. I do not feel a blend file would help as this problem has been reoccuring every time I use blender; it's not isolated to a specific file.



This issue does not occur when selecting vertices in wireframe mode;
This might do the trick:


Go to 'user preferences'
Under 'system' search for Window Draw Method
Change it to 'No Multisample'
(this disables the antialias in the 3D view).