I set up a site with the twenty twelve theme. Narrowing my browser on the computer generates a menu button instead of a menu. When I click it, I get a list of menu items. If W3TC is activated and I press the menu button on my iPhone, nothing happens. With W3TC deactivated, it works as expected.
You can disable CSS and/or JS minify under the Performance > Minify page to figure out which one is causing it. I’ve seen this happen in other themes and had to disable one or the other to stop breaking it.
Hi – I’m having the same issue so I just added wp super cache and did the “easy” option (I am not a programmer) but the same thing is happening – resizing my browser makes the nav bar disappear and it becomes one dead button just like it is on my iphone. Without calling my developer over the weekend is there an easy fix?
I exchange to twenty ten for the same reason… here it is working OK. I think it is important that the sites i working on Iphone…. but for sure I would like to have twenty twelve instead.
How can I see if I have W3T or Super-Cache.. maybe both?