I think I found a workaround (thus not a solution) for GNOME/OOO:
System -> Preferences -> Font -> Subpixel Smoothing (LCDs)
or
... -> Font -> Details
Smoothing: Subpixel (LCDs) Hinting: Full Subpixel Order: RGB
(I'm using 98dpi at the moment).
I think I found a workaround (thus not a solution) for GNOME/OOO:
System -> Preferences -> Font -> Subpixel Smoothing (LCDs)
or
... -> Font -> Details
Smoothing: Subpixel (LCDs)
Hinting: Full
Subpixel Order: RGB
(I'm using 98dpi at the moment).