I just setup the latest 4.1.1 maemo SDK on Ubuntu 8.10, and Xephyr doesn't seem to want to run - Xephyr :2 -host-cursor -screen 800x480x16 -dpi 96 -ac -extension Composite *** glibc detected *** Xephyr: double free or corruption (!prev): 0x0981a3c0 *** ======= Backtrace: ========= /lib/tls/i686/cmov/libc.so.6[0xb7c0e3f4] /lib/tls/i686/cmov/libc.so.6(cfree+0x96)[0xb7c10456] Xephyr(Xfree+0x21)[0x81d7cf1] Xephyr[0x80bcc52] ... Any thoughts on what's wrong or a workaround?