The Benq W2000 supports a maximum resolution of 1920 x 1200 (WUXGA). That's over four times the resolution of a 800 x 600 (SVGA) projector, which is the most frequently found resolution supported by 15000:1 contrast ratio projectors that have been around for a similar time to the W2000. This data projector also supports a graphics resolution of 640 x 480 (VGA).
A 1920 x 1200 (WUXGA) graphics resolution is in fact the best supported resolution across all data projectors of a comparable age and spec to the W2000.
An 800 x 600 (SVGA) graphics resolution is the worst supported resolution across comparable types of projector.