Doing killall pulseaudio doesn't fix it for me. Scroll wheel will still lower volume but not raise it.
Mint 12 Running XFCE with no panel Cairo Dock 3.0.0.0beta1 Asus EEEPC 1015PX netbook
Various other desktops installed, if it matters: Mint's default GNOME3 and MATE KDE Cinnamon Razor-QT
Doing killall pulseaudio doesn't fix it for me. Scroll wheel will still lower volume but not raise it.
Mint 12
Running XFCE with no panel
Cairo Dock 3.0.0.0beta1
Asus EEEPC 1015PX netbook
Various other desktops installed, if it matters:
Mint's default GNOME3 and MATE
KDE
Cinnamon
Razor-QT