Hi Paul :
We are always concerned when a "former" Norton User
switches to Avast because they seldom COMPLETELY
REMOVE Norton; in addition to uninstalling from
Add/Remove Program, we also recommend you use the
Norton "Removal Tool" which can be downloaded from :
www.majorgeeks.com/Norton_Removal_Tool_SymNRT_d4749.html .
In addition, I recommend you use your computer's
"Search > All files and folders", using the search "term"
"Symantec" & later "Norton" & "Delete" all it finds. And to
be even more through, run a registry cleaner to remove
Items there .
As to your "Hijack" problem : HijackThis logs are best used
by Experts on antiSPYWARE forums . Since you appear to have
Ad-Aware, I recommend you ask the Experts on the
Ad-Aware oriented forums at
www.landzdown.com .
P.S. Your HJT log says you have IE 7 ; one of the "Beta" s ?