Pressing F5

Once again… hoping this will save somebody lots of time of hunting around. It seems there is a bug in Java that prevents the installer from launching.
It currently produces the following error message when launching the installer:
java: xcb_xlib.c:52: xcb_xlib_unlock: Assertion `c->xlib.lock’ failed
See this tutorial for details on how to resolve the problem:
http://kaviarovetoasty.com/blog/

I’m posting this hoping that is will save somebody several wasted hours of effort.
Do not use the original DBDesigner4 download available on the fabForce.net website. Instead download the dbdesigner-fork package from here:
http://sourceforge.net/projects/dbdesigner-fork/
Once you have unpacked it. Edit the bin/startdbd_using_kernel2.6 script and remove the assume kernel 2.4.1 text:
Original file contents: LD_ASSUME_KERNEL=2.4.1 LANG=en_US.ISO8859-1 LD_LIBRARY_PATH=./Linuxlib/ ./DBDesignerFork
Edited contents: LANG=en_US.ISO8859-1 [...]