Swap partition on 13.04 not working

Swap partition on 13.04 not working

I have installed Ubuntu 13.04 on my Dell Studio 1555 laptop and the swap
partition isn't mounting or the system is just not using it. I have been
using Ubuntu sense 10.04 and have never had this problem before, until
13.04. I have reinstalled it a few times and still it doesn't work and I
have even install 13.04 on a USB drive and have it partitioned with both a
ext4 and a swap partition in it was well and even on that USB drive it
still doesn't use swap. Here is the output of the command 'free':
total used free shared buffers cached
Mem: 4007744 1897780 2109964 0 122124 929832
-/+ buffers/cache: 845824 3161920
Swap: 4198396 0 4198396
In Gparted it shows that I have the swap partition with not errors on both
the hard drive of my computer and the USB drive. So this is making me
think it is something to do with Ubuntu but I can't seem to find where
anyone else is having this issue. If there is anymore information you need
just let me know what and where to get it and I will do what I can. Thank
you for your help!