I dunno if this will help or not, but here goes.
1) Go to the Start menu, then Run
2) Type in:
Code:
c:\WINDOWS\system32\drivers\etc\
It should bring you to a folder with a few weird files in it.
3) Open the file called Hosts with Notepad. Make sure it's not Read-only. You should see a bunch of IP addresses and website names.
4) Add these lines in and save afterwards: (It's pretty long

)
I'm not actually sure which one solves the problem. Just add all of them in.
Code:
127.0.0.1 localhost
121.128.133.26 gwgt1.joymax.co.kr
121.128.133.26 gwgt1.joymax.com
121.128.133.27 gwgt2.joymax.co.kr
121.128.133.26 gwgt2.joymax.com
121.128.133.27 gwgt2.joymax.com
64.152.34.142 joymaxnpro.nefficient.com
121.128.133.12 silkroadonline.net