Thanks! I tried this, and it did help, but the intonation isn't quite there for the g-string. For the e-string, taking the spring out and tightening the screw all the way put the screw against the string. So when I tuned up the string, it broke. This turned out not to be a bad thing, however. When I took the string off, I noticed a problem with the nut.
The nut came separate from the neck, so I had to put it on by sliding it into the slot on the neck after I completed finishing it. I figured that I needed to glue it in (the instructions didn't say), so I put some super glue into the slot. Problem was that I didn't check to make sure that the nut was inserted all of the way into the slot. I thought that it was, but it wasn't. Below the high e-string, the nut was snug, but below the low e-string it wasn't; there was a gap.
Um, so I took a rubber hammer and tried bumping it into place. It looked like it worked, but when I took the broken string off, I noticed that all I did was to break the nut below the low e-string. Ugh. The glue had dried too quickly for the hammer to knock it in place. So apparently the nut is not as low as it should be slanting down towards the high e-string. Could this be responsible for the intonation problems?
Ah man, just adventures of a clueless newbie.