Please try quoting the info as exactly as possible,
Ok, Vlk....
'Click', right mouse button (with third finger on right hand) the Avast icon.
Select "Start Avast Antivirus" (left mouse button, first finger, right hand)
Stare intensely at monitor (using both eyes in perfect harmony) and up pops the 'Splash screen (memory check etc).
Then (one eye optional, as this is a smaller menu), the 'Error' box pops up. Reading (left to right - top to bottom) it says....
" Error
Setting HDD scan to FALSE [1]
OK
"
Next (and only after the above error box 'OK' button is clicked), the Simple User Interface pops up... well it actually sort of fades in gently.
Now (using a well co-ordinated combination of fingers and eyeballs), I choose the drives to scan. Followed quickly by setting the whole proccess in action... ie clicking on the -> (VCR look alike 'start' icon).
At this stage another error message pops up (much quicker than the SI) saying
" Error
HDD scanning NOT set
OK
"
Now I click 'OK' (cause I it's the only I've got) and away it goes merrily scanning the previously selected drive(s).
As per instructions earlier issued by my hero, I stop the scan. Another message pops up saying...
" Error
Setting HDD scan to FALSE [2]
OK
"
Guess what... I click 'OK' (thought I'd try 'right mouse button, but this time with any random finger from my left hand... you never know, could make a difference, damn clever these software programmers). Lo and behold, up comes the final message, telling me...
" Error
Scan OK, hdd=0, dwRet=42011
OK
"
The scan still reports "Not done yet"
At this stage the operator (me) turns to gaze at something else, removes all hands and digits from the control devices and wanders off to have a cup of coffee (black no sugar) and a smoke (Super Kings Lights.... I'm not sure of the 'bar code' details).
Ooops, nearly forgot... EAOA