Well AFAIK it IS fixed - this thread is a week old, Cochise... 
Are you using the latest build?
What exactly do you mean by "Scan Selected files only? Are you talking on-access scanner or the regular (on-demand) scanner?
Thanks
Vlk
I am using build 4.5.505, vps-0445-1 with Win98SE. On the standard shield provider, under "scanner advanced" selecting "only files with selected extension" After re-boot, Avast changes it back to "Scan all files".
I think it might have something to do with the previous version of Avast. I could not get the settings to stay and I remember that the fix was making your changes, terminating the providers, and re-booting. I had did that for settings in the mail scanner provider and in the standard shield and when I terminated them, Avast asked me if I wanted to persist the changes. I can't remember which one I selected but after I installed the Beta Version, the mail provider and standard shield were always off after re-boot and I had to keep starting them up manually. I then had to go to Avast/Settings/Confirmations and check the box to tell Avast to ask if changes were to be persisted since I had checked the box not to display it anymore when I was using the non-beta version. I was then able to get Avast to keep the two providers running all the time but they do not remember any changes made to them. It seems that all my settings when I used the non beta version did carry over to the updated beta version but now it will not let me make any changes to my original settings.
Any ideas? Do you think the problem was carried over from what I did when I was using the non-beta version?