Virtuemart product page will not display main image, only thumbnail

When I go to the product page, there is just a large white square where the main product image should be. I have used firebug to determine that there is a php script telling it to "display: none" but I can't figure out why and where it is located! Any ideas? It seems like this might be a template override, but I'm not sure.

Thank you!

Can you show me your screenshot with description ?

Sure, here is a screenshot with firebug open showing the "display: none" class and a large white box where the main image should be.

I also have encountered another display issue on the VirtueMart Products Scrollable module. It is throwing up a PHP script error that says: "Warning: Division by zero in /home/adaircct/public_html/templates/ot_swatch/html/mod_virtuemart_product/single.php on line 174"

When i turn error reporting off it simply shows a message "up to 0% off" in the product listings in the module.

Looks like I found the php line in default_images.php which commented out display of the main image. I removed the comment and it shows up. The problem now is that the image is not displayed in the proper size. What is the resizing script I need to add to make the main image fit in the main image box? Thanks!

You can change thumbnails size in virtumart configuration without Enable Dynamic Thumbnail Resizing

Regards