The cursor is buggy (Dark Souls 2)

Hi all! There was a problem, I don't know what to do. Played with a friend in co-op (dark souls 2 sotfs), everything was OK. Suddenly, he wants to set path of exil. After installation, it has a cursor in menus and inventory, but in General everywhere where it is possible to choose something became terribly fail. Glitch that having moved a millimeter, the lines are all selected randomly and choose something difficult.Moreover, the mouse itself is visually behaves appropriately. So. In the regular version of DK 2, all good. Incentives play without cheats of course. No mods, prog was not. Did a rollback system. Checked the hash, re-installed the game. Did not help, checked fps in menu - 60 exactly. What to do???