I have no clue, wait for the Official Tech Support, if they can't help you, just run a reinstall.
Ok thanks for your help. Hopefully someone has had the same problem before and knows how to fix it
No problem, Glad to try and help.
Go to Admin > templates > member_register > edit
Find all entries:
class="trow2"
Replace with :
class="trow9"
Save
Go to Admin > themes> global.css > edit
Add :
.trow9 {
background:#E6E6E6 none repeat scroll 0 0;
border-top:1pt solid #B2B2B2;
height:auto;
padding-left:10px;
}
Save
Should resolve the issue.