Hi, my update problem is fixed. I have downloaded the virus definitions update file “vpsupd.exe”(about 44MB) from http://files.avast.com/iavs5x/vpsupd.exe and reboot my PC. Now I have definitions version 111109-0 without internet connection. Then I connect the internet and avast successfully updated with latest virus definitions version 111109-1 at posting time (12:10AM 10th NOV,2011 Indian Standard Time).

Thanks to all avast! Members, Modifiers,Experts.