Warning Message Help

[dink]

Hello everyone,

I am a newbie and hope I have come to the right place to post.
I am very new at OsCommerce and even newer with PHP. I have background in C++ and Java.
I don't know where to look to fix these warnings. If you can point me in the right direction I would really appreciate it.
I have installed OsCommerce 2.2 and everything seemed to work fine when I tested the order with pay by COD. I had to install an addon for Quickbooks Merchant Services and now when I try to do a test order I get the warnings listed below.
I have not changed any of these files since installation.

Your help would be greatly appreciated.
dink

 Warning:  Division by zero in /usr3/home/xxxx.com/htdocs/ComputerHMO/store/includes/classes/shipping.php on line 61

Warning:  Division by zero in /usr3/home/xxxx.com/htdocs/ComputerHMO/store/includes/classes/shipping.php on line 62

Warning: Cannot modify header information - headers already sent by (output started at /usr3/home/jsnpc.com/htdocs/ComputerHMO/store/includes/classes/shipping.php:61) in /usr3/home/xxxx.com/htdocs/ComputerHMO/store/includes/functions/general.php on line 33 
  

[dink]

I found the answer!
Check to make sure that none of the variables are set to 0. For me it was in the shipping module. I had flat rate set to true and value set to 0. I simply set it to false and everything is working great.
dink

[dink]

Warning: Division by zero in /usr3/home/xxxx.com/htdocs/ComputerHMO/store/includes/classes/shipping.php on line 61

Warning: Division by zero in /usr3/home/xxxx.com/htdocs/ComputerHMO/store/includes/classes/shipping.php on line 62

Warning: Cannot modify header information - headers already sent by (output started at /usr3/home/xxxx.com/htdocs/ComputerHMO/store/includes/classes/shipping.php:61) in /usr3/home/xxxx.com/htdocs/ComputerHMO/store/includes/functions/general.php on line 33

Hi everyone,
Just want to let you know I got it fixed. The flat rate for shipping was set to true and the value set to 0. I set the flat rate for shipping to false and everything works fine now.
Just thought I would share in case some other newbie has the same problem.
dink