Row colurs only appear after hover

Hi the colours i've chosen for row colour1 and row colour 2
dont appear until you have physically moved the mouse over the rows?

Any thoughts

Hi here is the source of the first couple of rows, this on windoze internet explorer 8, i'll try it on another browser

<tr id="row1_gu_0_0" bgcolor="#FFFFFF" onmouseover="checktoggle_over('input_row1_gu_0_0', 'row1_gu_0_0','F5F5BA');" onmouseout="checktoggle('input_row1_gu_0_0', 'row1_gu_0_0','FFFFFF');">
<td ><span class="field"> 2</span></td><td ><span class="field"> 1</span></td><td ><span class="field"> 2010-05-29 16:00:00</span></td><td ><span class="field"> BJÖRN AGAIN </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> 0</span></td></tr>
<tr id="row1_gu_0_1" bgcolor="#A1FFFC" onmouseover="checktoggle_over('input_row1_gu_0_1', 'row1_gu_0_1','F5F5BA');" onmouseout="checktoggle('input_row1_gu_0_1', 'row1_gu_0_1','A1FFFC');">
<td ><span class="field"> 391</span></td><td ><span class="field"> 6</span></td><td ><span class="field"> 2010-05-30 10:00:00</span></td><td ><span class="field"> The Steyning Scandal Walk - Not For the Easily Shocked</span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> 0</span></td></tr>
<tr id="row1_gu_0_2" bgcolor="#FFFFFF" onmouseover="checktoggle_over('input_row1_gu_0_2', 'row1_gu_0_2','F5F5BA');" onmouseout="checktoggle('input_row1_gu_0_2', 'row1_gu_0_2','FFFFFF');">
<td ><span class="field"> 392</span></td><td ><span class="field"> 6</span></td><td ><span class="field"> 2010-05-30 18:00:00</span></td><td ><span class="field"> Dusk at Daylands</span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> </span></td><td ><span class="field"> 0</span></td></tr>

same issue under safari