Creating forms with tables breaks in IE

Your markup is wrong. You're mixing tables and list elements and that's making the browser angry. The others are apparently being more forgiving for the bad markup. You can see several of the improperly opened/closed list items inside the table < td > elements

[html]
<tr>
	<td colspan="5">

<!-- oops.. pieces of a list just floating around in here.. oh the humanity.. -->

	</li>
	<li id='field_1_30' class='gfield' >
		<label class='gfield_label' for='input_1_30'>Other</label>
		<div class='ginput_container'>
			<input name='input_30' id='input_1_30' type='text' value='' class='medium'    />
		</div>
	</li>
	<li id='field_1_31' class='gfield    tabler' >
		<label class='gfield_label' for='input_1_31'>Untitled</label>
		<div class='ginput_container'>
			<input name='input_31' id='input_1_31' type='text' value='' class='medium'    />
		</div>
	</li>
	<li id='field_1_32' class='gfield    tabler' >
		<label class='gfield_label' for='input_1_32'>Untitled</label>
		<div class='ginput_container'><input name='input_32' id='input_1_32' type='text' value='' class='small'    /></div>
	</li>
	<li id='field_1_33' class='gfield    tabler' >
		<label class='gfield_label' for='input_1_33'>Untitled</label>
		<div class='ginput_container'>
			<input name='input_33' id='input_1_33' type='text' value='' class='small'    />
		</div>
	</li>
	<li id='field_1_29' class='gfield      gfield_html gfield_html_formatted gfield_no_follows_desc' >

<!-- list is still open, but now we jump back to a table element -->

	</td>
</tr>

If you're going to introduce new HTML markup into the form, you need to make sure it's properly formatted so it renders correctly in all of the browsers.

If you're having problems with the markup/HTML fields, you have to remember that the main form is structured using an unordered list. If you want to interrupt that flow to add table markup, you need to first close the list, then add your markup and re-open the list manually so the form continuity is preserved. That sounds difficult, but it's not really. Here's an example using div's as the containers instead of tables. The concept is the same though.

http://www.gravityhelp.com/forums/topic/how-can-i-get-the-form-fieldsboxes-side-by-side#post-29425