Ever since I downloaded the new patch and bought Trespasser, my will not launch. When I launch DA:I, a windowed screen of the game launches, flashes to fullscreen and back and forth a few times until the inquisition symbol freezes, followed immediately after by the window closing; no errors or anything, it just closes. I have tried a heap of things from repairing the game, deleting and re-downloading the latest patch, restoring the old patch, deleting the save folder, starting the game in windowed mode etc. I have repaired/reinstalled all of the redist packages in the install directory as well.
This is driving me crazy!
Anyway, Dxdiag: http://hastebin.com/oyocolidob.tex
September 2015 - last edited September 2015
Things to consider doing:
a. Delete any "merge" folder AND the current "Patch" folder, then from the EA/Origin main screen choose "Repair" to reinstall the current patch.
b. Wait a week-or-so for the next patch (rumored to be coming out before the GOTY Edition release) then proceed with step a., above.
[EDIT: And to prevent any confusion, the current patch is "Patch 10", which results (on the PC) in game version 188.8.131.52. There was a hotfix between patches 2 and 3 that incremented the version, but didn't get an official Patch designation.]