Hi,
This problem has been fixed in the new version of our VM Templates, but for those who don't want to re-apply the template just because of this issue, here is the guide to fix this issue:
open the category browse page PHP file:
which is right here:
ROOT/templates/<yourjoomlatemplatefolder>/html/com_virtuemart/category/default.php
(default.php, defaultlist.php, flexv2.php etc.. depends on which ever layout you have chosen through VM Configuration)
Then find this HTML line:
<div id="bottom-pagination">
and change with this:
<div id="bottom-pagination" class="vm-pagination">
That's it. Everything will be good to go. You will find this HTML line in 2 different places, one at the beginning, and one at the end of the same PHP file, simply because there are 2 places where "pagination" buttons appear in the website (at the top of the page in right hand-side and at the bottom of the page in left hand-side).
Cheers.