system
1
When I open Avast, the main screen shows my virus definitions version is 110905-0 in red. I click on update button, it seems to connect to server but reports back it’s already up-to-date with 110905-1. Click OK again and main screen still shows version as 110905-0 in red.
How do I correct this please?
Pondus
2
try avast repair and reboot
For a repair of avast. Windows, Add Remove programs, select ‘avast! Anti-Virus,’ click the Change/Remove button from the pop-up window, scroll down to Repair, click next and follow.
did it work ?
system
3
Tried Repair but problem still exists.
system
4
Forgot to reboot afterwards, as you suggested. Now rebooted and all is OK. Thanks.
Just one more thing. After the repair, I got a Windows box saying something about did it uninstall correctly or incorrectly. i just pressed cancel.
Did you run a cleaner like CCleaner after you uninstalled any previous av you have ever had on your machine? 
http://filehippo.com/download_ccleaner/
system
6
My pc came preinstalled with McAfee, which I removed via Programs and Features and then ran McAfee removal tool. I did run CCleaner afterwards.
Since carrying out the repair and rebooting my pc, Avast is now showing the correct definitions version.
Pondus
7
you now may edit your first post and add SOLVED to the topic headline