problems viewing the site on IE

Try to fix things using this w3 validator validator.w3.org/ . There is something strange about . Especially note the end tag not closed conflicts. (do not care about undefined attribute warnings)

Trying you too...the reply of W3 validator is 56 error, but how can I solve them? With before freelance template I don't have any problem...

There are coming from content you added. If you check our demo you will se no conflicts.

Your problem is probably caused by some un-closed tag in article or custom html module content.