porn-mix owner is a known Russian ratass "Ded Mazai".
He installs exploits, use redirect, popups and autodialers.
His most tricky exploit changes different links right on the loaded page (which can be anything) in the EI window for his own links:
(DO NOT TRY TO GO THERE if you are not good with protection of your PC!!!)
xttp://nativehardcore.com/main/k.php?key=LOLITA
xttp://nativehardcore.com/main/k.php?key=ΥΣΙΝί
xttp://tooncomics.com/main/hp.htm
Except his TGP porn-mix.com His domains also are:
dedmazai.com (pretty big CJ)
99livecam.com
and probably
http://www.maturefuckholes.com/mature.shtml
I cannot give you a 100% cure against the shit he stuffed into your computer, because he use different exploits.
Check you "hosts" file (windows/system32/drivers/etc), and if you find anything except "127.0.0.1 localhost" try wiping out everything else.
Also, check your windows folders for files: iedll.exe , loader.exe - delete them if you find them, then go to "APPLOG" folder and kill files iedll.LGC , loader.LGC. This may help. Though again, it may be not enough.