Thanks PP

jh1964 - Fyi, i've only one anti-virus program. I uninstalled Norton Antivirus program before i installed Nod32 leaving only the 'One Button Checker' & Utillities from the Norton SystemWorks program (that's why it is shown in HijackThis results) cos' the former really hog all of my memory. The Window Firewall also is disabled when i installed Zone Alarm.

Also, i did a scan with Ewido 4.0 before this & it caught a 'Backdoor.Bifrose.zf" path C:\WINDOWS\system32\server.exe which i duly quarantined.

I'll follow your advice with the PP link & get back to you

Thanks.