Strange that this is happening on two different systems with two different avast products.
Have you just installed these avast products ?
If so what anti-virus did you have installed before and how did you remove it ?
Have you tried an avast Repair ?
- XP - Add Remove programs, select 'avast! Anti-Virus,' click the Change/Remove button and select Repair, click next and follow.
- Vista, win7 or later - Control Panel, Programs & Features, uninstall a program, select 'avast! Anti-Virus,' click the Uninstall/Change and select Repair, click next and follow.
You may need to reboot after the repair.
NOTE: You have posted in a sub-forum that is for issues related to the my.avast.com web site, this should really be in the Avast Free/Pro/IS/Premier forum -
https://forum.avast.com/index.php?board=2.0.