My baseline rMBP arrived today, and first things first, I ran the IR test. Sure enough, LG panel has Image Retention that lasts 5-10 min. Can I deal with it? Possibly, I'll probably have a decision within the next 13 days. However, the real problem began when I loaded up a copy of WoW from my USB3 drive, cranked the graphics settings to Ultra quality. This is what I was greeted with: https://dl.dropbox.com/u/6743974/Screenshots/IMG_0962.MOV (apologies for the horrible quality video, but you get the idea) 1. I toned down the settings to High, and it stopped. 2. I put it back to Ultra to try taking an in-game video of it, and it still wouldn't do it. 3. Restarting the game makes it happen for a while, until a trigger condition of sorts makes it stop (usually moving away from crowds, or starting to record video). 4. Playing with Highest settings in Diablo 3 doesn't do anything. 5. I ran the built-in Diagnostics on Extended mode with 0 errors. 6. Software updated to latest, and hardly anything else installed yet. Anyone have an opinion on whether this is a Hardware (bad VRAM, maybe some bad GPU cores?) or a Software (Blizzard introduced yet another bug for the 5.x patch day) issue? Given these two strikes (possibly bad GPU/VRAM, and a LG panel with fairly visible IR issues), should I consider taking a trip to the Apple store for an exchange before it's too late? Thanks.