See the attached image, which was made in Firefox 2. The arrows, red outline, and purple outlines were added by me for the purpose of illustration.
1/ Note how the purple boxes overlap with the red box. The red box is the containing block for the Google ad. The purple boxes are the containing boxes for the prev. and next buttons. The result of this overlap is that the previous and next links are unclickable. This overlap is not supposed to be happening, but it is, and it most likely indicates problematic CSS code. (I drew the outlines using the DOM Inspector, so the representation of this error is 100% correct). This CSS problem does not show in IE6 because of IE’s buggy handling of CSS, but this is a problem for those browsers with compliant CSS like Firefox.
2/ Note the misalignment of the prev/next arrows. This shows in all browsers.
3/ Note the two instances of cut-off text.
4/ Note the unknown character icon between “Color” and “Green”. The problem is that the page is being rendered in UTF-8, but the text stored in the reviews are stored in the Western European character set. One solution would be to re-encode the review text (BTW, this affects multiple parts of multiple reviews) in UTF-8. Another solution would be to stop using “fancy” MS-Word quotes and instead use normal ASCII-compliant quotes since ASCII is a subset of both the UTF-8 character set and the Western European character set and thus anything within ASCII is safe. A search-and-replace of all the fancy single-and-double quotes would do the trick.