Adjust the bars so that they touch the browser window's borders in fullscreen mode - but SO THAT YOU CAN STILL SEE THEM. Use opera's zoom feature (+/-) or change your desktop resolution. Or if you don't use Opera, nevermind.
Actually, only touch them zoom controls if your computer is SUPER FAST. I mean it.
If sound doesn't work, disable flashblock. Or if you're using OS X and Opera, it's Opera being retarded. It has problems with zero-width frames - or something. Sometimes it OPTIMIZES THE WEB EXPERIENCE BY NOT LOADING ANYTHING AT ALL. Fuckings to Opera for that and a horde of other bugs. Try Safari.