hello to you all.
i really dont know what to do here.

to explain this as simple as possible i choose to do it with the help of 3 images
instead of 3000 words.

im trying to make a mailbox with php and mysql.

text editing is done by tiny mce text editor:
http://www.xgs-gaming.com/images/help/mail1.jpg

and here you can see the text flowing over the div box.
http://www.xgs-gaming.com/images/help/mail2.jpg

when overflow is enabled it wont flow over, but the text is still not visible:
http://www.xgs-gaming.com/images/help/mail3.jpg

HTML Code:
                        <div class="mailbox_read_maintext">
                                <div class="mailbox_read_maintext_overflow">
                                        <?php echo $get_post['mail_text']; ?>
                                </div>
                                
                        </div>

HTML Code:
.mailbox_read_maintext {
    /* overflow: hidden; */
    width: 668px;
    min-height:323px;
    height:auto!important;
    _height:323px;
    /* background-color: red; */
    margin: 5px;
}
.mailbox_read_maintext_overflow {
    /* overflow: hidden; */
    width: 668px;
    min-height:323px;
    height:auto!important;
    _height:323px;
    font-family: tahoma;
    font-size: 13px;
    font-weight: normal;    
    /* background-color: yellow; */
}