LCDs suffer from image tearing? (Score 1)

I have an InFocus LP725 (an LCD projector I believe), and I get a fair bit of image tearing from fast moving images (read games :), despite having selected 'always wait for vertical sync' on my video card (a Radeon 9700).

InFocus tell me this is a problem inherent to all LCDs, and that DLPs tend to be better.

Can anyone pass on their experiences with this?