The people over at Wizard101 have announced a compatibility issue with the latest Internet Explorer 9 update. Check out the news below.
There is a known compatibility issue with the most recent IE9 release candidate. If you download and install IE9, you will not be able to run Wizard101. Please know we will address this issue soon, but until then we do not recommend you install IE9 if you wish to play Wizard101.
Check out the official Wizard101 News Feed here.