hi All, I did something wrong with my home computer. for 1: it runs slow so I remove some programms (uninstall). then it runs faster but: QQ get defected, see below: All you see are veird code and question marks ( ????) where surpose to be beautiful Chinese words. °²È«Ìáʾ£ºÌÚѶ ¹«Ë¾ÌáÐÑÄú¾¯Ìè 161;°QQÖн±¡±Æ¾Ö¡£ Same thing with pps software. I redownload both pps and QQ but was not helpful. it is vista system. for 2: on another computer, I remove some programs which i thought useless. it becomes faster but: all online kids games become defect: like painting and drawing, coloring;;. .. the game area is black ,no pictures can be seen. Thank you very much