No font when other players on the screen.

When other players are on my screen, all the text, exept for the player and npc names disappear. If I look towards a wall or something, so no other players appear on my screen, the text reappears. NPC corpses produce the same bug.

I got a AMD Radeon 6750m graphic card, and I know it is not the most powerfull but according to the minimal spec page, my specs should be just fine.

I am having the exact same issue. AMD Radeon HD 6700 Series.

Interestingly enough this problem for me is new, I have not experienced it in previous phases.

Just in case this information is relevant, this happens to me regardless of what graphics setting I have on or what character/server I am on.

Edit: More specificly I have noticed this occurs whenever you are in a situation for a NPC or PC's name to be displayed on the screen. I can reproduce this bug simply by summoning Carbuncle and moving the screen so his name appears on screen. The moment I turn the camera so he is off screen, or he is dismissed, all text returns. Here are some screenshots of reproduction.

SS1: http://i.imgur.com/6QuJNJe.jpg Both the main player character and NPC are on screen with no issue. But the camera is angled so NPC name is not displayed.
SS2: http://i.imgur.com/xgZwRiT.jpg Camera pulled back, NPC name displayed, screen text dissapears.
SS3: http://i.imgur.com/QqcbYge.jpg NPC dismissed, text returns.

This pattern works for more then just Carbuncle, I was simply using him as a quick example. This pattern holds when any other PC or NPC is present with name displayed on screen.

I fixed my problem. It was being caused by a Teamspeak 3 Overlay. If you have any overlay, remove it and see if it fixes your problem. Best of luck to anyone with this problem.