Text covers images.

Hi,

starting a few weeks ago, I’m experiencing a problem accessing my website with google chrome.
The text near a floated (both left or right) image, from time to time, “covers” the image itself. By refreshing the page (sometime a couple of times), I finally get it right.
It seems I’m not experiencing this problem with other web browsers.

Is there a way to fix this? Could it be a css/plugin/theme .. or an already known browser problem?

Many thanks in advance.

A.