[opensuse] windows that won't wobble with desktop effects enabled

Using desktop effects I've noticed several apps that won't wobble when moved (xterm, netbeans installer and netbeans), is there any particular reason for this? What criteria prevents windows from wobbling? -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org