I have a Sony upconverting DVD Jukebox (HDMI output) and a Toshiba HD A2 HD DVD player (HDMI output). I am having problems connecting the video to my 990.

The 990 only has 2 DVI inputs. I bought 2 HDMI to DVI cables from monoprice and I have them hooked up to the 990. I reset the inputs on the menu of the 990 but I do not get any video signal.

I also bought a DVI to HDMI coverter for the DVI out. I have a HDMI cable hooked up to this and the HDMI cable goes to the TV.

I have double checked my settings and connections. Does anyone have any suggestions on what I can try to get the video to appear?
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Panasonic TC-P65S1 65" Plasma HDTV, Marantz AV 8801 Preamp, Outlaw 7700 Amp, Klipsch RF7 (X-over dean G modded) RC7 (X-over Dean G modded) RS7 CDT-5800C speakers, Outlaw LFM1 EX Subwoofer, Oppo BDP-93, B & O Turntable, Toshiba HD-A2, Sony CD & DVD 400 disc jukeboxes, DirecTV HD-DVR, PS2, PS3, Wii, Harmony one remote, Monster PowerBar 1200 for the TV, sub, PS3, HD DVD and Wii, Tripp Lite Isolation Bar for the Amp, Pre-Amp and other sources.