@ Gopher John
You mention "I uninstalled V5 and ran the new AswClear.exe," but the version number of the one on the http://www.avast.com/eng/avast-uninstall-utility.html page is the same version as that used with 4.8 I believe.
So I don't know if it has been changed/updated the version number is 1.0.0.1 although the file properties show a date modified of 31 December 2009, 12:41:03, which pre-dates the release of avast 5.0.377
Since the two aswClear.exe files have the same name, I found the easiest way to check which is
which is by the icon displayed for each file. In Windows Explorer or Total Commander, the icon for
4.8 is the old blue one while the icon in the v5 version of aswClear is the orange ball.