This affects vertical panels. My application launcher is HUGE.. it takes about a quarter of my panel. In KDE 4, they set the height of the application menu to be really small.. This needs to be handled generally. Reproducible: Always I cannot ship this to my clients until this is fixed... so it's at least a normal. (btw, I'm planning on working on these bugs myself)
screenshot of the problem?
*** This bug has been marked as a duplicate of bug 339418 ***