I have read some strange specifications for the IBM-iLV300...
It's a native 800x600 pj, capable of a 1024x768 max resolution.
However, it's supposed to be able to display 1080i, although lower HDTV resolutions were not mentioned.
The first place you should check is the manual and maybe contact customer support.
You can't really configure the YPbPr input of the pj, maybe you should check the output from your box, to make sure it sends a correct signal.
