what's wrong with my computer

bingbing

hi, friends, i have another problem. in my computer, some chinese websit show chinese that i can read , like this websit, but the others show "luan ma", like " Edmonton hua ren sheng huo lun tan". who can tell me why? and how to deal with it?
" P" X+ K" I5 p2 t2 A5 Bthanks first

越来越开心

What is the Operate System? win98? win2k? winXp?
  B4 x" X! R, W- T' z
5 \1 R/ W) l0 K" rcheck your control panel, run 'region', install all of chinese code, then your problem will resolue.