yep I just saw that myself ... the reason I didn't see it before was because I forgot to refresh my templates and I was still looking at an old version 
In Thumb.tpl (located in templates/blocks), you can replace the line starting with document.write( ... with the following:
document.write('<div id="thumbs" class="gcBackground1 thumbbar" style="{if $map.ThumbBarPos eq "3"}position:absolute;right:{if ($map.LegendPos eq '2' and $map.LegendFeature neq '0' and ($map.AlbumLegend or $map.PhotoLegend or $map.regroupItems)) or ($map.FilterFeature neq '0' and isset($map.ShowFilters) and $map.ShowFilters eq '2')}205{else}5{/if}px;margin-left:4px;{/if}height: '+myHeight+'px;"></div>');
Don't forget to clear yor template cache ... it should repair the problem 
Let me know 
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The Termite 