@Dean Bush: Hi Dean... If you're referring to the file name as it shows in the chrome, it doesn't show the file type (the ".css"), so that wouldn't be your problem. Are all the other styling properties working?

The font that the browser uses is limited to the fonts you have installed on your machine, are you getting any sans serif fonts at all, just not Arial?  Maybe you can post your code at pastebin or someplace and others here can review it for you...