thnx robp & big joe for yur reply.

robp:
- i have uninstalled AVG & make fresh installation of MT4 but the problem still exist.

big joe:
- i make MT4 fresh installation. after the installation succeed, there are pop-up for update. if i dont click this update there is only little or no data came out..thnx for the comodo link, i will try it

thnx again