Try temporarily disabling V-Ray in Options > Plug-ins, then restart Rhino, let it complete the viewport creation, then run New.
Any luck?
John,
I disabled Vray 5 & save message went away.
Re-enabled Vray & save message reappeared.
Will McNeel communicate this with Vray Rhino team, or should I?
thanks,
Glenn
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No commands used, not even panning or rotating.
I do not have scripts running or other than Rhino standard plugins.
You should contact them directly.
At least you know what’s causing it.
Nothing in here:
This has been going on for years:
@John_Brock might want to check this last one as well as it reproduces the issue without V-Ray.
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Nope… not even a dot in command lists
In my case, it is due to the Vray plugin, but I didn’t bother to contact them, so I just have myself to blame for once 
Hi Frits -
Could you please try to determine when it does occur?
-wim
Hoi Wim, I’ll try. If found a way, I’ll post it here.
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I still haven’t determined when, but one thing is very strange. Again, it doesn’t always happen.
Of course, if I open rhinoceros and the cursor is not in the last used files window, a new file opens. When selecting from the menu “Help”, “about Rhinoceros”, and I choose a file then Rhino sometimes asks me if I am sure to save the empty file with the selected file name instead of opening the file …
I did contact Chaosgroup several times about this but they can’t seem to find a fix for it. So this basically leaves you with two options:
1 stop using V-Ray
2 learn to live with it
Developers always say: give me a way to reproduce it and I’ll fix it, yet this case is probably an exception.
I do not use V-Ray. If it is not a Rhino issue, why do I have the problem?
It seems to me somewhere in the code there is accidentally used a save “statement” instead of a open
It doesn’t only happen with V-Ray. I have had it happen occasionally on machines without V-Ray installed as well. It doesn’t happen all the time, and nobody can really reproduce it reliably, which is why it hasn’t been fixed yet.
Something provokes the flipping of the ‘document modified’ flag to True and then Rhino automatically asks you if you want to save when closing. But nobody has yet been able to find out exactly what that ‘something’ is. It was thought to be some sort of plug-in related problem, however, if I understood correctly it has also occasionally happened on installs without any non-standard plug-ins.
Same here I always had this message popup and my thought was this is normal behavior sins it is happening always.
Hi Wim, I think it has to do with date and or time.
My sequence of mouseclicks are exactly the same, I open Rhino with a shortcut, making sure the cursor is not on the popup window but somewere else on a Rhino viewport. After the popup vanish, moving the cursor to menu item “Help”, selecting “About Rhinoceros…” and the popup appears with tab “Recent” active. Clicking the most recent file. Exit without saving or doing anything in Rhino.
When opening exactly the same within minutes Rhino do not ask to save.
When wating 24 hours without using Rhino and doing exactly the same, Rhino ask me to save the blank.
I didn’t know that, but what I can say is: if I have V-Ray enabled it happens always, and if I disable it, it never happens.
For me, with Rhino 6 it DOES happen all the time, whereas with Rhino 7 it does not happen at all.
(both latest releases)
Don’t know if this information is of any help.
Just a guess but perhaps the critical time is when an autosave event occurs.
It seems to me it has not to do with autosave. Why? I do not use Rhino for professional purpose and the last days I only did open rhino to determine when the problem occurs
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