Inconsistent results- standard scan vs SS scan

[CMSunshine]

i did a standard scan before shutting down last night after having some problems with my system, but everything checked out fine...this morning the screensaver scan started to run while i was making breakfast, and it detected 1 infected file, but i couldnt figure out where to find what it was or what it did with it.  there were no new files in the chest. i have no specific actions selected for screensaver scans, so i assume it wouldnt do anything?? so i decided to run another manual scan to see what it had found before, and nothing shows up! what gives 

[DavidR]

The two scans could be on different sensitivities which would account for this.

Since you don't mention the file name and location ?
Nor the sensitivity for the screen-saver scan or if archives are selected in the standard scan ?

It would be hard to make any comparison as to what might be scanned or not.

[Lisandro]

Are you using the Pro version? If not, the screensaver scan will stop and display a virus warning. I suggest you run a thorough scanning (archives included) with avast or schedule a boot time scanning.