Now go there again (right click the blue avast! ball in system tray and choose ABOUT), and check what's the VPS file version (see attachment). If it's not like on that screenshot (0504-4), it means that you are still using old one, and it needs to be updated...
Again, right click the blue avast! ball in system tray and this time chooce UPDATING / iAVS Update
Cheers !