Well, just after the last update I started noticing this behavior. All quest rings, tracking things on both map and mini map glitch out every now and again. Seems that both latest versions of Nvidia drivers give the same problem. If I put a few steps forward or back I notice that they stop glitching. A few steps more and the glitching is back, or all quest track thingies are totally off the map. Even funnier to top everything all off, just earlier tonight I noticed my character pointer on the mini map just disappearing and reappearing every now and a gain. This is greatly annoying.
Are there more people who are having this particularly irritating problem?
On my laptop everything seems to be working (it's got a Radeon vidcard) so I'm blaming the combination of Nvidia hardware and latest build of the game.
Card is a EVGA GTX 580 SC.