Latest josm and screen displacements

[ael]

At least the last two versions of josm-latest have been corrupting my X
environment. After downloading osm data, the whole josm window and the X
session are displaced by perhaps 100 pixels down the screen. The mouse
pointer and the highlighted members of some pull down menus are
similarly displaced. Exiting josm leaves the whole X session displaced.
Restarting X was not sufficient to clear the problem. A reboot, and then
resetting the X session was needed.

I did find a core dump file which was from the xfwm4 window manager
which *may* have been related to the problem. The timestamp was about
the same time. gdb did not report anything very helpful.

Obviously I tried to report this as a josm bug, but when I tried to
submit a ticket, it failed. Repeatedly. I tried logging in to the Trac
system, but that too fails. Hence this message. Sorry for so little
detail, but I assume that others will be seeing the same problem.

ael