I'm using RWD Theme for my Magento 126.96.36.199.
I noticed if BSS jquery library is enabled from admin panel, this effects RWD image zoom plugin.
If you are using RWD theme, please disable jQuery Library by selecting NO in this configuration as RWD theme has already supported jQuery Library.
Please turn off jQuery Library of module then it would not effect to image zoom anymore.
For more information about product, please refer Pro Configurable Grid Table View page.
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