If pressing PgDn while at first screenline or PgUp
while at last screenline, the caret shouldn't be at
the first(last) line if electric scroll is enabled.
Sorry if this is a dupe, but I have many bugs to post
and am too lazy to check them all for dupes
OS: Windows XP
Java Version: Sun Java 1.5.0_09-b03
jEdit Version: 4.3pre8