New version 4.6 and sp2 security center doen't works

Hello !!

I have Win xp sp2 since a lot of month et avast 4.5. all his OK

today avast say me "hey ! a new version arrive !! and install it automatically … need to restart my computer … ok lets go…

now I have avast 4.6 but the security center say: You AV his out to date !!

What can i do ?

thx for your help !!

Hey, Taltos, try to repair your installation:
Go to Control Panel > Add/Remove programs > avast! antivirus > Remove. Then choose Repair function in the popup window (Repair). You must be connected to the internet while repairing.

If this does not help, can you uninstall / boot / install (download the new version setup) / boot again?

Check your system date especially the month and year. Correct it if it is wrong.