Help With Form

Hope someone can help...try to have an email sent with form data after form submission. It worked the first few times, now it doesn't. Any ideas?

HTML FORM----------------------------

<form name="request_info" action='process.php' method='post'>
<table cellpadding='5' border='0'>
<tr>
<td><b><font color='red'>*</font></b>First Name:</td>
<td><input type='text' size='20' name='fname'></td>
</tr>
<tr>
<td><b><font color='red'>*</font></b>Last Name:</td>
<td><input type='text' size='20' name='lname'></td>
</tr>
<tr>
<td><b><font color='red'>*</font></b>Email:</td>
<td><input type='text' size='20' name='email' value=''></td>
</tr>
<tr>
<td><b><font color='red'>*</font></b>Phone:</td>
<td><input type='text' size='20' name='phone'></td>
</tr>
<tr>
<td><b><font color='red'>*</font></b>Company Name:</td>
<td><input type='text' size='20' name='Company'></td>
</tr>
<tr>
<td><b><font color='red'>*</font></b>Where can we help?:</td>
<td><select name='help'>
<option value='ps'>Please Select...</option>
<option value='Collections'>Commercial Collections</option>
<option value='Demand'>Demand Generation</option>
<option value='Research'>Research</option>
<option value='other'>Other</option>
</select></td>
</tr>
<tr>
<td><b><font color='red'>*</font></b>Project Description/Notes:</td>
<td colspan='2'><textarea name='comments' rows='5' cols='50'></textarea></td>
</tr>
<tr>
<td colspan='2' align='left'><input type='submit' name='submit' value='Submit' style='height:25px;width:100px;'></td>
<td align='right'><input type='reset' name='clear' value='Clear Form' style='height:25px;'></td>
</tr>
</table>
</form>

PHP - PROCESS.PHP---------------------------------

<?php
ini_set("SMTP", "192.168.1.55");
ini_set('sendmail_from', "jwong@couch-associates.com");
@extract($_POST);
$sendto = "jwong@couch-associates.com";
$fname = stripslashes($fname);
$lname = stripslashes($lname);
$email = stripslashes($email);
$phone = stripslashes($phone);
$cname = stripslashes($cname);
$help = stripslashes($help);
$comments = stripslashes($comments);
mail($sendto,"Form Submission","FirstName: $fname\n"."LastName: $lname\n"."Email: $email\n"."Phone: $phone\n"."Company: $cname\n"."Need Help With: $help\n"."Comments: $comments\n");
header("location:thankyou.php");
?>

 

Well, to start, you shouldn't be using a table to lay out your form like that. Can you post a link to the page with the form?