Inexplicable vertical lines

I’m working on a 2D game in unity, and I’ve put together a script to display text. It looks just fine in the preview window, but if I build it and test it, I’m getting a lot of graphical glitches in the form of weird, vertical lines, and I can’t seem to figure out what’s causing them.

Here’s a link to a screenshot of what I’m talking about:

http://i.imgur.com/tQPKL3V.png

(obviously i’m goofing around a bit testing my script, hence all the Js)

The only reason I can think that these would be showing up is that each character is an individual sprite, and unity is throwing a fit over having that many objects crammed together like that?

I’ve had a similar issue before and updating Unity solved it, but Unity’s up to date now so that’s not an option.

EDIT: doing some more messing aorund, I’ve found that changing the graphics settings changes the lines. If I set it to “beautiful,” it makes the renderer boundaries of each letter visible.

Try to change something on your font. Those lines are rounding errors at the edge of the letters in your font texture. The resolution is probably too low.