I figured out the full screen issues on SyFy.com... user ignorance!
Anyone have Boxee running on 64 bit Mint8, and does it work with NetFlix? I found something about installing 32 bit Boxee on Ubuntu x64, but thought I'd ask here before trying it. Maybe I should just reformat this machine and go with 32 bit... seems like there isn't a lot of 64 bit support out there, and unlike Windows, 64 bit Linux doesn't automatically run 32 bit -- what's up with that!!!
HTPC: Mint 11, Athlon II x4 (2.6 GHz), GeForce 9400, 4GB
Shop PC: XP Pro, Athlon 64 X2 (2.19 GHz), GeForce 7300GS, 2GB
Wife's PC: Win 7, Athlon II x3 (2.7GHz), GeForce 8200, 4GB
DTP-PC: Mint 12, Phenom II x4 (3.0GHz), GeForce 9600GT, 8GB