I'm not sure if this is the right place to post this, but it's pretty weird and it just started happening out of the blue.
Suddenly half of the letters of all the words displayed anywhere on my screen are missing.
Interestingly, the question edit box seems to be unaffected.
I've attached an image of the problem, but just in case you can't see it an example would be:
Th s is a s nte ce wi h s me f th let rs m ssi g.
I'm running Manjaro XFCE 16.06 x64 on an old HPG62. It might just be my laptop packing up, but like I said. The edit box is normal.
I may not have made it clear, but the problem is not just specific to the browser in the screenshot. It is system wide. Anywhere there is text some of the letters are missing. If I close and reopen a menu different letters are missing.
There are two exceptions that I have seen. One is the edit box on this site and the other is the text inside the sublime text 3 editor. In those two cases the text is rendered normally.