For the past week, I've been getting little to no hot water to the shower. There's hot water to the tub, but not when I turn on the shower. So I replaced the shower lever cartridge today (pic below), but that didn't fix the problem. The tub has also been leaking water for a long time; not constantly but it drips then stops and repeats.

Here are some pics:
http://img32.imageshack.us/img32/4817/img4680.jpg
http://img32.imageshack.us/img32/1248/img4672.jpg
http://img32.imageshack.us/img32/4351/img4676.jpg

Any suggestions?

Bump

I changed the shower head and it seems there's hot water if I make the water come out faster.