EDIT: Well this is embarrasing... I'd defined the cell height on some but not on others. Oops! Problem solved.
I've got a bit of a problem with the CSS (I think it's a CSS problem) for a site I've been building:
Mebyon Kernow - The Party for Cornwall
The dark gradient bars at the top of the different sections of the pages look fine on Firefox, but some of them are messed up on all the other browsers. The dark bars are larger on some of the sections than they should be (as a comparison, "Support MK" on the front page looks like it should, but "Latest News" is messed up). The strange things is I'm using exactly the same formatting for all the bars, but only some of them are messed up.
Does anyone have any ideas about what may be causing this?