I get this alert - jes-427-javax.microedition.lcdui1@1.. - in an nokia 6600 running a midlet.
Within the emulators I have no problem at all.
I really don't know where to search because the error doesn't always appear at the same place.
even the errorcode sometimes changes (the triple-x):
but the programm will always be closed !
help - trying to build a banking application for a large retailer, but the 6600er won't let me do my job.