You should probably play with the positioning--move the VP150 to the front edge of whatever it's sitting on (if it's behind the edge, there's a vastly increased potential for reflections, etc. How far apart are the M22s? Are they all in the same depth plane? Do you have surrounds? What mode were you listening to the speakers in (DTS, Dolby Digital, DPLII, 5-stereo, etc...)

I am the Doctor, and THIS... is my SPOON!