The cutting of text in GC forms usually occurs when you are using some additional css files to meet other requirements. I use Mozilla Firefox and Google chrome as my browsers and realised that this problem occurs only with Mozilla. As a quickfix I changed height:20px; to height:30px; in flexigrid.css and datagrid.css
The changed blocks would appear like this:-
.flexigrid div.form-div input[type=text], .flexigrid div.form-div input[type=password]
{
...
height:30px;
...
}
.datatables div.form-div input[type=text], .datatables div.form-div input[type=password]
{
....
height:30px;
....
}