Where could the problem be (is it IE 6) when my gallery pop-up picture opens sometimes and sometimes not. Usually I have to click on the slide show and reload the page once and then the pop-up works?
impossible to say without having a look at your page at least - post a link to your page!
http://www.puhelimeni.fi/galleria/ (http://www.puhelimeni.fi/galleria/)
p.s. I cannot think of anything else, but some browser end problem as the pop-up works sometimes and sometimes not.
Unable to replicate - tested some random pics both with IE and FF, worked flawlessly for me. Do you have any pop-up blockers in place except the built-in ones of IE? Maybe some pseudo-security app (like "Norton Internet Security" or similar crap) is interfering...
Thanks for confirmation that it worked for you. I guess it´s something of the things you mentioned.