[John Lester]

It looks like you have a conflict in your css pages. Don't ask me where because I didn't try to find it.

You can resolve the problem by placing the following code in your additional.css template for that style.

ACP -> Styles & templates -> style manager -> your style here -> edit templates -> CSS templates -> addtional.css

.textbox, textarea, select {
    background: none repeat scroll 0 0 #FFFFFF;
    border: 1px solid #6B91AB;
    border-radius: 3px 3px 3px 3px;
    color: #000000 !important;
    font: 11px Tahoma,Calibri,Verdana,Geneva,sans-serif;
    outline: 0 none;
    padding: 4px;
}