I added a color attribute under custom options for a product. I tried to enable that option through the "manage Attributes" menu by clicking on color option, but it returned an error as given below:
Fatal error: Call to a member function toHtml() on a non-object in /home/rnrn1004/public_html/app/code/core/Mage/Adminhtml/Block/Catalog/Product/Attribute/Edit/Tabs.php on line 50
/home/rnrn1004/public_html/app/code/core/Mage/Adminhtml/Block/Catalog/Product/Attribute/Edit/Tabs.php
? does it work when you disable all extensions? – OSdave