a) I meant sound thru hdmi
Regarding color - I don't think that memory was an issue - it was the old issue of PC RGB scale of 0 to 255 vs movie standard of 16 - 235 - The issue shown it's ugly head using only hdmi and not with vga connector.
p.s: It's not PIA - Common term is PITA
Regarding remote control - I used a USB IR Receiver bought on ebay off MS MCE DELL box. I was able to train my universal remote some of MCE (keyboard) commands so it worked OK - not great.
Again - one of my worst annoyances was a boot up time. Wake from sleep didn't worked right with boxee - so exit software+hibernation was a necessity.