gedit 2.5.92 (compiled with gtksourceview 0.9.2): When trying to quick
scroll a document loaded in gedit with PgDn or PgUp (but not when using the
mouse or the arrow keys), the document will scroll down in normal fashion
up to a certain point and then stop scrolling, jumping wildy up and down in
the editor window. This happens if one keeps PgUp/PgDn pressed but not if
these keys are pressed in single steps. Sometimes scrolling the entire
document down to the end may 'correct' the problem. -- In gedit, this only
happens with files displayed with syntax highlighting, so it might be
related to gtksourceview (but I'm unable to check this). So far I have seen
the problem with html, xml, and .desktop files.