Well, huh, check this out... I know that I made a mistake SOMEWHERE, but wonder now how to fix it... The story goes as follows:
From both my PC's I removed Norton Internet security using add/remove, remove incl. all other Symantec products that appeared there...
After that, I installed Avast Home, latest version, and from the start, on 1st PC everything was just fine while on the other one Avast refused to load p2p shield, standard shield and IM shield... Alright.. I ran RegCleaner and Registry Mechanic, manually removed all traces of symantec from Hard drive, browsed through Registry in a search after norton and symantec keys.... Rebooted.. Didn't work... Then I came to this forum, found some suggestions and followed them, ran NRT, rebooted... In vain, again... I uninstalled Avast then... ran Avast remove tool, ran NRT again, just to be sure, rebooted clean, installed Avast again, and what was there for me? The same message as before! Avast couldn't load resident system shield etc. due to Norton anti virus being detected!!!!! Where!? How!? I'm even thinking of reinstalling Win(shit) XP SP2 altogether... but only as a last resort... someone mentioned before how ppl will be happy when they finally get Symantec products out of the their PC system... well, I know that I will be!
Help!!!!!
PS. I even found Symantec shared DLL's and removed them from registry and hard drive, those were left after NRT... together with a key in which some norton file /non-existant on HD, btw/ is set to run on system boot...