W3 Total Cache Minify Problems

Hello,
I have recently installed W3 Total Cache and i know that it is not your place to support such plugins but i was woundering if you could offer some advise or know why what is happening is happening.
I installed the plugin and followed numerous guides online and set everything up as i thought it should be setup, all worked perfectly the JS minified as expected but when the CSS was minified all went wrong.
I added custom.css, style.css to the mix logged out of the admin panel and the site wouldn’t load style or custom.css i have tried lots of different options but when it is turned on for some reason it wont work i just get a un-styled website which looks like this;
http://dl.dropbox.com/u/1038051/doodletuts_broken.png
The Minify Settings i have been using are as follows – http://dl.dropbox.com/u/1038051/minify_settings.png
Obviously this is not on my site now as i have had to turn minify off as it was breaking the styling of my production environment and don’t have a test environment but the site’s url if you need it is http://www.doodletuts.com
I have tried taking stylesheets out of minify putting them in, moving them up and down the list with no luck and i really have no idea why it is working so i am here to ask if you know why this might be happening.
Any input or help you may have would be extremely gratefully received.
Kindest Regards
Richard