I just got the game today, after playing Actress Again on a friend's PS2 a couple of days ago. The base game starts up and runs just fine, but when I apply the patch and then try to run the game, a dialog box pops up alongside the non-existant game window, and when I press the button at the bottom of the window, my browser opens up to some Japanese support page.
For reference, I have the base game, and the 1.2 and 1.4 update. At first, I tried updating solely to the 1.2 revision, then the 1.4 revision. No luck. I also tried updating straight to the 1.4 revision, to no avail. It seems like the patch applies itself, but the game refuses to run.
Here is an album--the first image is the dialog box that pops up, and the second is the browser page that pops up once you press the button.
I certainly don't think my specs are an issue, but here they are, just in case:
Windows 8.1 64-bit
Intel i7-2600k
16GB RAM
2x AMD Radeon 7970s
256GB Samsung 850 Pro SSD