it's great,..
but i have trouble, when I finish to install avast 8 pro trial in my notebook,..
i have notebook AO722, processor Amd Dual Core 1.0Ghz, 2Gb DDR3, and I use win 8 pro x86 OS,..
when I logout from my system, n i will login again my desktop in user login is blank,.....
and when i sucess login, ned more time to show menu windows,..
how do heandle this trouble,.?