Avast Free Home Edition 5.0

Hi i have recently upgraded to Avast 5.0 however I am unable to scan the computer ever since. Kindly Help.

Why are you unable to scan the computer, what errors, etc. ?

Please explain the steps you have taken to a) upgrade to 5.0 and b) run the scans ?

Hi David, thanks.
I was running Avast 4 and following the message on Pop up i upgraded to Avast 5.0.418. Now when i go to the scan now option under Scan Computer, I see the icons for quick scan, thorough scan etc, however i am not able to select any of the options. There are no error messages since i am not able to select any option.
Would be grateful for any help.
Regards
Sameer

Is the screen blank to the right of the Scan Now menu ?
Or just that the Start buttons don’t do anything ?

Try a repair of avast. Add Remove programs, select ‘avast! Anti-Virus,’ click the Change/Remove button and scroll down to Repair, click next and follow.