I\'ve got a simple form like so (illustrative purposes only)...
Had same problems with 100% width table and cells, with a textbox (also with width at 100%) wider than the table cell.
This solved my problem in the css:
table td
{
padding-right: 8px;
}
Not the best solution ever, cause you probably get some additional space to the right side. But at least it's not hiding anymore!