Cant change my volume level from the icon

Question

My speaker icon is on the bottom of the screen, worked well before (right click and change volume up n down), now it fixed at 45 %. Tried right click but nothing happen. (right click worked with everything else).
My notebook is a year old Presario CQ62
Everything else works okay
Thanks
Nisa

Answer 1

Hi Camelot,
How would you assess the effect on "overhead"?
This may have nothing to do with it, but I was curious as to the effect on speed of the script, so I ran the two scripts below. On my old souped-up 7500 (900MHz), the first script, with the "say" command outside the tell block, yielded an average of 111.7 ticks; the average for the second script was 110.1 ticks. So the difference appears to be about 1/30th of a second, insignificant for a one-time event (but maybe not if the routine is repeated numerous times).
(By way of comparison, my 2.7 GHz machine averaged about 80 ticks on both scripts. That's about half a second faster, and is noticeable.)
Script 1
set t1_ to the ticks
repeat 20 times
tell application "Finder"
open file "MAC HD:Users:osimp:Desktop:SEM Hazards.rtf:"
open folder "MAC HD:Users:osimp:Desktop:herd:"
end tell
say "Now close!" using "Fred"
tell application "Finder"
close folder "MAC HD:Users:osimp:Desktop:herd:"
close window 1 of application "TextEdit"
end tell
end repeat
set t2_ to the ticks
set AvgScriptDuration to (t2_ - t1_) / 20 & " ticks" as text
Script 2
set t1_ to the ticks
repeat 20 times
tell application "Finder"
open file "MAC HD:Users:osimp:Desktop:SEM Hazards.rtf:"
open folder "MAC HD:Users:osimp:Desktop:herd:"
say "Now close!" using "Fred"
close folder "MAC HD:Users:osimp:Desktop:herd:"
close window 1 of application "TextEdit"
end tell
end repeat
set t2_ to the ticks
set AverageScriptDuration to (t2_ - t1_) / 20 & " ticks" as text
(Finally, deviations from the mean ran as high as 4 ticks on the slow machine, and occassionally as high as 2 ticks on the faster machine -- for what that's worth!)