iirc isn't r5 supposed to be a very small value like 100ohms or smaller?
just from looking at the pictures, you may want to touch up the ground plane connections. a good joint will not look like a bubble, it should smoothly connect between the parts being soldered. for example that little ball in the 5th row from the bottom in your ground column, that doesnt look like it's soldered to anything at all, you could probably poke it with a finger and have it roll off. i dont know if this would solve your current problem, but bad joints can cause a lot of headaches down the line even if they aren't at this moment.
also i agree with samsquanch, you're using a lot more solder than necessary. this can lead to other problems like unintentional shorts.
Edited by Soymilk - 10/21/10 at 4:18pm