I currently run glimmer with my screen resolution set
to 1920x1440, when I stretch the Glimmer window to
1000x1400, Glimmer becomes unusably slow, however
when I reduce it to something more reasonable like
1024x768 (the window, not my screen resolution),
Glimmer performs rather nicely. Gedit does not have
this problem, though admitedly Gedit is doing allot
less behind the sceens.