Cannot Modify Header Information error creloaded admin

Warning: Cannot modify header information - headers already sent by (output started at /home/ejon/public_html/admin/[login to view URL]) in /home/ejon/public_html/admin/includes/functions/[login to view URL] on line 57 I get this error now when I go to my categories/products and try to edit my product information (like the number I have in stock, pricing, etc). When I click update I get this error now. Everything else works., The store is working and taking orders, this is just annoying. I actually does the changes but still gives this error. (example, I chagne stock number from 5 to 3 and click update I get the error, if I hit back button and refresh and click on the product the new number in stock shows up). I have also noticed that the product images arent previewing in the admin categories. This is a creloaded pro 6.2 sp1 webisite without any aftermarket mods. It is completely stock coding.