RPS writes: My companions have stopped following me. The map has suddenly blanked out. The dungeon doors aren’t opening. And despite my just having cleared out a two-storey dungeon for the second time, there hasn’t been a checkpoint in over a half an hour. If I quit out to fix it, the entire area map will be reset yet again (a previous quit to see if there was any way to raise the difficulty had already done this to me once, and is how I discovered the dungeon wasn’t checkpointing), so in total an hour’s play time lost, and, well, here’s the thing: Diablo III just isn’t brilliant enough to warrant this.