乱码 when coping IE address

乱码 when coping IE address:

Once I highlight the site address to copy website address. The address became 乱码.

For example I was on the site
http://web.wenxuecity.com/BBSlist.php?SubID=computer=page

After highlighting the address it became the following 乱码
瑨灴⼺眯扥眮湥畸捥瑩⹹潣⽭䉂䱓獩⹴桰㽰畓䥢㵄潣灭瑵牥瀦条㵥3빨֘


Any one can tell what’s wrong with my computer? Virus?
Many thanks
Min