after using the myhd mdp-100 for about a year, i finally upgraded to the mdp-120, mainly for the dvi-passthrough and the better reception (and the better analog cable reception was a plus). luckily, i had a copy of my pre-mdp-100 system ghosted, so i was able to install the mdp-120 "from scratch".
i'm happy with the 120 so far. the dvi passthrough is great, the reception is better (not as much as i hoped--i was getting 30-50%, now it 40-60%), and the analog cable reception is much better. but i have noticed a couple of things. i did some searches in the old "official" thread but didn't find any answers.
asus p4b266 (845d motherboard)
1.8a ghz p4, 512mb ram
ati radeon 9000
on-board c-media sound
myhd driver v22.214.171.124
myhd app v1.62.2-us
i have a vga-cable from the radeon to a crt monitor, a dvi-cable from the radeon to the mdp-120 daughtercard, then a dvi-cable from the mdp-120 daughtercard to the projector.
1) i connected the ota antenna to antenna 1, and reception was fine. when i connected analog cable to antenna 2, reception on antenna 1 went to 0 (i didn't even switch inputs--just plugging the cable in made it go to 0). i switched the ota antenna to antenna 2 and the analog cable to antenna 1, and everything went back to normal.
2) in my previous set-up with the mdp-100, i had a vga-cable from radeon to crt monitor, dvi-cable from radeon to plv-70 projector, and vga-cable from mdp-100 to plv-70 projector, and i had "separate monitor" checked. i could switch the desktop from monitor to projector by hitting alt-f5, and i could switch the projector from desktop to fullscreen by changing the projector input.
now, with the mdp-120 and the dvi-daughtercard (connections described above), i can switch from desktop to fullscreen just by hitting the hd button on the remote. it's great, because it was always a pain to switch inputs on the projector (involved several steps, going through the projector menu). however, i can no longer switch to the crt monitor by hitting alt-f5, and when i look at the radeon settings under the "display" tab, everything is grayed out--i can't select two monitors like before.
that's a pain because sometimes i like to work on the htpc without having to fire up the projector. i made the mistake of trying to enable "separate monitor" to see if that would fix things and realized that i was stuck in fullscreen mode (had to plug the projector directly into the radeon to unselect that).
3) maybe related to #2, when i boot up the computer, the projector output is blank. i have to start myhd (hitting the power button on the remote) and then the dvi-passthrough works, even if i subsequently shut down myhd. so it looks like the passthrough doesn't work unless it's been enabled by the myhd app at least once...?
4) with the mdp-100, i used to be able to get spdif sound through my motherboard's spdif output by checking wave and selecting the spdif option in the pulldown menu. that doesn't seem to work with the mdp-120. spdif directly from the mdp-120 works fine, though. not a big deal, but it would be cool if i could fire up myhd without having to change any inputs (with the mdp-100 it was always an ordeal to fire up myhd, switch the video input on the projector, then switch the audio input on my receiver).
other than those things, i like the mdp-120 much better than the mdp-100. anyone have any experience with those issues? sorry if it was covered in the other thread, but i didn't see anything in my searches or in the manual.