Spoiler tag in the off chance somebody hasn't played it and is in this thread. How long was that session? My freezes always happened somewhere between 45-70 minutes of play. Freeze, my buddy was kicked, he would wait for me to reload and we would try again. I rolled back to 382.53 and we have done Horde 1-50 on normal twice (2.5 hours) and 1-50 on hardcore once (3 hours) with no issues. I might try these driver after my next full backup. Thanks.