Ok, I realize that it's stupid to solo mine like this, but I just want to know why it doesn't work now, in the case that I decide to solo mine later. But I can't get GUIMiner to let me mine at all.
I set the username and password beforehand, as well as set the bitcoin client path and launched it as a server.
These are my settings in GUIMiner
host: localhost
port: 8332
username: (hidden)
password: (hidden)
extra flags: no
using CUDA CPU miner to test it out. (kidding, I don't actually have a GPU
)