421421 fix browser page load issue

Hello Everyone - I have this issue with my site that is only happening when viewed through safari and google chrome. It appears to work just fine with Firefox. There are 2 sites being hosted on one hosting accounts. The top level site [login to view URL] works fine, but the site [login to view URL] which the entire site is located in a folder within the [login to view URL] account. When you go to [login to view URL] in safari or chrome and try to go from english to spanish on the home page there is an error. when you go to a product page and try to go to mas xtreme or passion and try to go from english to spanish, the page goes blank. I am thinking it is php related maybe a cookie issue? Or that it needs to have a it's own hosting server. The code should work, because the same code is being used on [login to view URL] but the only difference is that [login to view URL] is the top level file structure and [login to view URL] is in a subfolder of that directory. Please let me know what you need in addition to this.. Thanks neroweb