This is an internet site where I sell on. Some seller's photos are coming out, give or take, larger or smaller than the 400 by 500. Some sellers are not having a problem at all enlarging their photos. Firefox does bring up images smaller compared to internet explorer and chrome though for the sellers who are having problems getting their photos to enlarge. Our site says that they did not change anything, so I can give no real response to this problem other than what I have posted here, wish I could. Us sellers are asking the site owners to look into this further. Some say it may be a browser issue. We all use different versions of Firefox. I assume I have the newest one which is 4. I had this problem prior to the update also and the same applies to the other sellers...we have that in common that the problem already existed before any updates. Any suggestions that may lead us in the right direction would be much appreciated.