page can be viewed here: http://dev-comp.gotpantheon.com/

Works fine in every browser bar IE7.

The top right has social icons which in IE7 only, the Google +1 icon disappears while the rest remain.

Also in IE7 the Facebook social icon displays text beneath it which I cannot seem to hide.

Finally in IE7 the top navigation icons (above the navigation text) and the bottom borders disappear.

Can anyone shed light on these issues?