Cannot create a new document. None of the following options work: the blue "New file" button, Menu > New and Ctrl+N.
I have restarted the computer and the problem persists.
I'm running Illustrator v 30.4

Ctrl + N, o el botón de nuevo archivo no funcionan, programa en su última versión y no puedo trabajar, qué debo hacer?

I see. There is a similar problem that mentions a dual-monitor setup (http://illustrator.uservoice.com/forums/601447/suggestions/50782655)... well, it’s something else then :(
As a workaround, please open Preferences and enable the 'Use legacy "File New" interface' option — it should skip the modern dialog and fall back to the advanced legacy one.

I have only one actual and no virtual one then

I meant actual monitors, yes. But if you do have virtual ones — do you?

Do you mean virtual monitors in Windows, or physical monitors?

Do you have one or several monitors?

Nothing happens when I click New in the File tab or when I use the Ctrl + N shortcut.

Is it still broken for you?

Illustrator CC 2017.1.0 (64bit)
Windows 8.1 2013
Asus 64x

Ctrl + N or File> New Document do not work, nothing happens

Paul, any issues with later builds?

Both. Nothing appears.

Thank you so much, it's been resolved by clicking "Use legacy File New Interface" from the preferences.

Which one do you mean?
The one at your Home Screen?
What about File > New?
If it fails as well, try to go to Edit > Preferences and check 'Use legacy "File New" interface' — does it make any difference?

Once I close all the artworks, I click on "New", nothing seems opening. I think it's bug

Audri, if you go to Preferences > General and check 'Use legacy "File New" interface' — does the dialog appear when you try again?
Just to understand if Ai fails completely to create a document, or is it only the modern dialog misbehaves.

After a few hours of running illustrator at work, it will come to a point where I cannot create a new file. Ctrl+N won't open the window. File > New... won't open. Clicking New File in the home page won't work. I have to close illustrator and reopen it. It happens at least 3 times a day and is quite frustrating. I've tried resetting my preferences and reinstalling illustrator, but it continues to happen.

Does it work if you don’t copy anything?
If yes — does it matter what you copy? a text, a vector art?

Illustrator 25.4.1

copy an item from a document
hit "command N" to make a new document
hit "return"
new document dialog goes away, but a new document is not made

So it works, good. It’s not an actual solution, since these dialog don’t display thumbnails for recent templates and docs, but it’s fast and I prefer it to the shiny modern one.

> Is there a way to have this window as it's set by default?
Not sure if I get it. You mean you like this one better than the modern one? When you check the 'Use legacy "File New" interface' option in Preferences — this is the dialog you will always get from now on for File > New and Ctrl+N.
Or do you refer to the templates folder you wish to always get opened?

When choosing it, this is how it looks. Is there a way to have this window as it's set by default?