New to mac, running OS X 10.5.8 on iMac 9,1. I couldn't play .wmv files, so I downloaded VLC. Now I get video but no audio. Also, I get no sound when I run pps files. I have no idea what settings I might need to change. Can anyone clue me in? Oh, and another thing while I'm here: I also can't get my HP Officejet 6310 to install properly. I keep getting HPIO Trap Monitor Quit Unexpectedly and then Setup Manager won't detect my printer. Any help here? Thanks to any and all macGeniuses who can guide me through the tribulations of migrating from PC to Mac!!