dhtmlxCombo defect in IE6

I found it worked well in FireFox and IE7 but there’s a defect in IE6.

I embedded dhtmlxCombo in

tag . but I found all of other content will disappear in the “XXXXX” div when we try to select an option from the combo box widget in IE6.0. This div “XXXXX” has its own css and I am not sure if there is any conflict between this div and dhtmlxCombo. But it works find in IE7.0 and FF.

Does the problem occur in standard combo samples ?

Do you have any sample ?