#2
You logged in as "administrator"? I know vista is pretty finicky about that and doesn't let you adjust much if you're not.
AMP:
5150 combo
GSP1101 + Tech 21 PE60

GUITARS:
ESP LTD M-255 w/ SD Full Shred
Kramer Vanguard w/ JE-1000 active preamp
Douglas WF-150sn w/ GFS "Hot Lead" set

EFFECTS:
Bos SD-1 (boost)
AMT DT-2

My Youtube Vids http://youtube.com/user/mogar
#4
Could be. Check your Realtek control panel. I remember that I was able to adjust my settings from there before I re-installed my soundcard. Perhaps you just didn't enable the "work with windows mixer" option thing (not what it was called, but you'll know it when you see it).
AMP:
5150 combo
GSP1101 + Tech 21 PE60

GUITARS:
ESP LTD M-255 w/ SD Full Shred
Kramer Vanguard w/ JE-1000 active preamp
Douglas WF-150sn w/ GFS "Hot Lead" set

EFFECTS:
Bos SD-1 (boost)
AMT DT-2

My Youtube Vids http://youtube.com/user/mogar