Get the Dell MP3200 (?) for $900...it's brighter and works great.
As with this Dell and HP (and most lower end DLP projector's), color output isn't the best. True Yellow looks more like a Lime-Green.
If you search the KB's of Dell and HP they clearly document this "feature" and blame it on DLP technology and that their products are not defective as a result (aka....don't call asking for a RMA).
My company has both these projectors.....bought because of their size....both have the same flaw. We have a lightbox DLP projector, but it cost almost $3000, weighs 14lbs, bigger, noiser (fan), and uses a 300W+ lightbulb to achieve a 1800 lumen output.
My $.02 of info......