Horizontal Scroller Thumbnails Overlap

Hello,

I have a strange problem which is that the horizontal scroller thumbnails, on the first time the page is displayed, the last few thumbnails instead of coming to the

right/ end of the horizontal scroller, they wrap and overlap the first few thumbnails.

Often if you hit Refresh then the scroller functions as it should- this problem of overlapping thumbs rather than normally functioning horizontal scroller seems to

happen only the first time the page is accessed and then sorts itself out subsequently.

Please have a look at the below URLs and try to help me please:

http://snlpro/drupal/gallery2
http://snlpro/drupal/gallery5
http://snlpro/drupal/gallery7
http://snlpro/drupal/gallery9
http://snlpro/drupal/gallery10

Thanks very much,
Sunil