Disk Utility bug?

Hi guys,
Something seems to have happened with my volume scheme in disk utility.
I have a 250GB drive in my MacBook, of which ~30GB is partitioned as "Windows HD" and the remaining ~200GB as "MacBook HD". I wanted to create a new small partition to put some secure files, so I shrank my OS X partition to create some free space. As soon as this happened, the diagram messed up and I'm now left with this:



As you can see, MacBook HD appears tiny when it's actually about ~180GB, and the Windows partition shows as being huge, when it is still 30GB.

Any suggestions? I am unable to resize any of them!

Thanks,
Ed