Complex sentence: ClearType will not work as intended on displays that have no fixed pixel positions, such as CRT displays, however it will still have some antialiasing effect and may be preferable to some users as compared to non- anti-aliased type.
Split into simpler sentences: ClearType will not work as intended on displays that have no fixed pixel positions, such as CRT displays. It will still have some antialiasing effect and may be preferable to some users as compared to non- anti-aliased type.