there is problems not an one problem and u no determine it.
this steps can halp :
problem on ur Pc:
1- install software antivirus ex(norton,bitdefender,kaspersky ... any one) and use full system scan.
2- or install software scan ur registry cleaner ex(TuneUp Utilities 2009) and scan .
3- install internet explorer again
4- when u finish ty go ur site.
5- come other pc trust no have any problems. go ur gaming site
6- may be this stie have cookies internet explorer use blocks it . how open this block??
7-select i.explorer rclick properties select tab privacy select a setting for the internet zone choose level accept all cookies
u can open more block of pop-up windowns .but ur pc is place danger an internet can hackers attack u .