Inconsistancy in alternate image popups

[bass28]

I have a product with 4 images attached.  All 4 thumbnails show under the main image on the product detail page.  If I click any one of the thumbnails it is anyone's guess whether I will see the thumbnail image or the full image.  As I click the same image over and over I will typically see at least one thumbnail size display and several full size images display...there is no pattern to it.

I am using the standard default_images template which does the following:
echo '<div class="floatleft">' . $image->displayMediaThumb('class="product-image"', true, 'class="modal"', true, true) . '</div>'; //'class="modal"'

Any ideas?

[bytelord]

??
I don't understand what is your problem! Sorry ...

Please explain it better, your issue, also any live url will be good