You're incorrectly terminating the IE conditional comments on the first line, so other browsers will see the content between the delimiters (you can also see how the text is highlighted black on the first line, which is not what you want):
<!--[if (IE)]> i am IE <![endif]-->
<!--[if !(IE)]><!--> i am not ie <!--<![endif]-->
The second line is correct since you want to show that content to non-IE browsers.