Hi maddenHatter,

You may have a reason to be concerned, as avast! will not alert when nothing is amiss (or not detected).

Suggest going here and downloading and running the first three programs: http://forum.avast.com/index.php?topic=53253.0

Each will, when run to completion, produce a log. Attach, do not paste, the logs in your next reply. Once that is done, a malware removal expert will be notified and assist you in cleansing your system, beginning with an analysis of the logs produced and attached.

All other programs listed in the link above are only used when warranted. Please wait for your malware expert to tell you to run them.