Vertice selecting

When I try to select a vertice, Blender also selects a vertice that’s really far away for no apparent reason.
Any way to fix this?

aaaaaand nevermind.
moderators, delete this.

Just so you know, I have had this problem on AMD computers, but never on and intel. I’m not really sure what to do about it.

pi972: glad you solved it, but if you’re already posting back here to tell the mods to delete it, you may as well just write what was wrong so future posters with the same issue may find it…just a suggestion!