Need to know more - how exactly is it hooked up now? I agree with Freeze - if you had to switch to analog from HDMI, why do you think you can use HDMI now? Did you get something fixed?
Another great resource for issues like this is
www.avsforum.com
Here is the link to the correct AVS forum:
http://www.avsforum.com/avs-vb/forumdisplay.php?f=149
Losi 8T 1.0, Savage Flux - XL style, LST XXL, Muggy, 3.3 E-Revo Conversion and sitting outside 425hp, 831 Tq Dodge Ram Turbo Diesel. It SMOKES