Have a look at thisAll the CSS for this sample page from my site is embedded - the external stylesheet is disabled.The problem is that while IE6 shows the right-hand navigation links (#NavExt1) at the same height as the upper left-hand links (#NavInt1), Firefox shows them at the same height as the lower left-hand links (#NavInt2). Do I have to 'fool' Firefox somehow, or is Firefox behaving correctly and I have to 'fool' IE6?On other site pages, where there is only one left-hand links box (#NavInt2 is not shown), #NavExt1 is shown at the same height in both browsers (just below the #header div, the intended height).