just had this happen today.
found that it had been docked and it shrunk to a zero width.
hovered the crosshairs along the edge of the drawing area and a parallel Line cursor appeared.
went back and grabbed the edge of whatever the cursor was hovering over and streteched out the missing Toolspace.
hope this helps
I'm having the same issue and it's happening in Civil 3D 2013 & 2014.
I have narrowed it down to a custom shortcut that is using a custom profile on our network.
I still can't figure out how to fix this. I have 80 users that will be using this custom icon and profile so that Civil 3D nows where to look for all of our CADD standard, fonts, ctb, templates, etc...
I have tested and it's not our template, viewports, hardware acceleration on or off, etc....
You can actually turn on and off this mystery viewport by clicking on and off the big Toolspace icon.
If I use the standard Imperial icon using the C3D Imperial profile you won't get this problem but if I use our custom icon then it doesn't work.
I also started with the standard icon, imported our custom profile and set current and it still worked, so then I exported the custom profile right away to overwrite it, then started with our custom icon, re-imported the profile and restarted and I still have the issue.
Here is what the icons are using.
"C:\Program Files\Autodesk\Autodesk AutoCAD Civil 3D 2014\acad.exe" /ld "C:\Program Files\Autodesk\Autodesk AutoCAD Civil 3D 2014\AecBase.dbx" /p "h:\cadd\profiles\2014\WSN Civil3D 2014.arg"
"C:\Program Files\Autodesk\Autodesk AutoCAD Civil 3D 2014\acad.exe" /ld "C:\Program Files\Autodesk\Autodesk AutoCAD Civil 3D 2014\AecBase.dbx" /p "<<C3D_Imperial>>"
Jason, I'm curious if you are using a custom icon and/or custom profile.
I have attached a word doc just showing my screen captures.
I would be curious if the users that are reading this discussion would create a custom shortcut that would point to a custom profile on a network to see if you can repeat this issue.
Let's try again with the attachment.
I just realized that this forum you can't upload the latest version of Word so that's why it didn't come through.
I doubt if it's the icon it's self. Ours is customized in a similar manor:
"C:\Program Files\Autodesk\AutoCAD Civil 3D 2014\acad.exe" /ld "C:\Program Files\Autodesk\AutoCAD Civil 3D 2014\AecBase.dbx" /nologo /p "C3D Imperial 2.0" /t "E:\Acadlib\Template\_RCHD C3D Imperial 2014.dwt" /w "Civil 3D 2.0"
It may be something in the profile. If you start from the stock icon and then switch to the WSN Civil 3D 2014. Does it have the same affect. Oh. It looks like you're referencing an ARG file. I haven't tested that in 2014, but I know that wouldn't work in 2012. You might have to import the Profile ARG into your template and eliminate the .ARG from the path in your custom Icon. You'll notice that our /p parameter does not point to an ARG file. It takes the profile from the template referenced immediately afterwards.
I imported our profile after I had launch with standard icon and the profile worked and all the tool palettes worked ok.
So that made me do some more testing and I think I figure out this problem and it's kinda funny that this would cause the problem.
I had my system var. Startup=2, I changed it back to defualt value of Startup=0 and it fixed the problem.
So I tested this by starting up with standard icon, changed Startup=2, closed, restarted with standard icon and the problem appeared.
Did some more testing and it looks like this problem will only occur when you have Startup=2 and the first thing you do is use the New drawing icon and pick a template.
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