I had a much better run Thursday. I started off with a better attitude, and it was a good ten degrees cooler than on Monday. My legs were a bit shaky the first half mile or so, but I stuck it out, and felt great by the end of the first mile. Need to do another 4 mile run sometime this weekend.
I think I've found the audio alert timing I like on runkeeper. I have it tell me distance and pace every 10 minutes, and every half mile. I like it more than the every five minutes setting it was on originally, even though the timing ends up being different by only a minute or two anyway.