In Luna when I click on build path, click libraries, add external jar files, it will not show the file dialog. Sometimes if I restart eclipse it will work but only for the first few items I add, then it stops allowing the dialog to appear. It's very strange and no errors or anything else appears. I tried Lunda 4.4.0 IDE Java version and also the EE version same thing both 64 bit versions.
Any idea what could be causing this?