Computer Problem

i've something wrong with my computer now...anybody help?
I bought my laptop here in canada 3 days ago,it's great...and here's the problem,I can open a website in chinese and everything is ok,I can read everything..but when it's time for me to download some software(e.g QQ or XunLei or Kugoo)...i can install then but i can't read those word on it at all(unrecognable code) nor can I read the message from my friends from QQ!~~~

Anyone who had such an crazy experience can help??

Thanks a lot=)

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