Using 2.9.1, when I run my app as an applet on OS X (Mavericks), it loads a blank screen in the browser. If in Eclipse, if I resize the applet screen by dragging, the app pops into view then disappears up the y-axis leaving a blank screen. I took a screen capture to describe it, see the link below. This is a Mac only bug for me, no problems in Windows.
http://imgur.com/gizqXAB (http://imgur.com/gizqXAB)
which version of Java are you using? Java 1.7.0_45? or some other minor/major release?
It's the latest version, 1.7.0_45.
odd, just tested on 1.7.0_45 with LWJGL 2.9.1 and seems to work fine, does http://lwjgl.org/applet work for you?
Hmm, yes http://lwjgl.org/applet works for me. I just dropped an older 2.9.1 nightly into my project and it worked ok. The timestamp on the older builds jar files is 31-Jul-2013 if that helps. Are any of the older nightly builds still available? I could try to narrow down when the change occurred if they are.
The applet at http://lwjgl.org/applet should be using the LWJGL 2.9.1 release version and not a nightly build. Do double check that the version of LWJGL 2.9.1 you are using is the release version (both native and jar files), it might just be that there is a mix up of files somewhere on your system.
It's definitely the release version, I re-downloaded and tried again with the same results. Also, if I target Java 1.6 I get a black screen without the app appearing when resized.