Already tried SpyBot and AdAware in Safe mode etc etc, but to no avail.
Googled a thread on this forum and, as instructed, ran Vundofix, removing c:\windows\fonts\tcpodbc.dll and c:\windows\fonts\cbdopct.*
Problem is that when I restarted the laptop, much of the taskbar (but not all of it) has disappeared (can't get to Control Panel, for example, even when I hit the Windows "start" button).
Would greatly appreciate some help !