Hello.
I don't know if the question has already been asked (in any case, I can't find it in the search).
I have a little problem with my drawing. Part of my assembly seems to be disassembled when I am in the "shaded image" representation.
On the other hand, when this view is in a "hidden line" everything is fine. 
My assembly is well constrained everywhere and has no problems when I open it
Thank you in advance for your help
Hello
Can you attach your images in a little bit bigger? we don't see much....
Very surprising your story
the graphics card is up to date for the SW version used?
See this link http://www.solidworks.fr/sw/support/videocardtesting.html
@+ ;-))
Wouldn't it be a problem of configuration and display status?
Check them out and tell us what it is. =)
Hello
The classic CTRL + Q doesn't change anything?
@+
Are your assembly and your parts in "solved" and not in "light" or even "complex assembly" ?
Edit: another idea, don't you have a "Flexible" subassembly in the head assembly?
Other research idea:
There wouldn't be a configuration that "hangs around" with the Remove new functions and check-in constraints option.
Wow, lots of answers. Thank you all.
@ Flegendre. If that were the case, I think it would do for both types of visualization. But here, I only have the problem with "shaded image" and "stops in shaded image mode" as soon as I put color in short.
@benoit. LF. Solved or lightened doesn't change anything (that's the first thing I thought of). And no, nothing in flexibility. I even went to check the constraints, there are no overconstraints and bad constraints (which don't point to anything, etc)
@Coyotte. Ctrl+Q doesn't seem to work
@gt22. Graphics card ok for my solidworks
@Bart. Probably... but I don't really see what to tinker with to change that :s
If you close this drawing and make a new one by "throwing" the same views. Do you have the same effect?
Benoit.LF, yes. I tried by redoing a drawing (different sizes of plan. A4, A1, etc.). I tried changing the background directly.
I also tried to restart the PC (yes, it never works. But you never know).
Nothing to do. The problem remains
Re
Wouldn't there be transparency lying around here and there?
@+
Not for transparency. Everything is clearly visible
On the other hand, I realized something surprising. By hovering my mouse over the view, the features of the panel appear in their theoretical place while visually not. 
In your place I would do a new complete drawing
@+ ;-))
When you open your drawing, the assembly is open in the background ?
Try to display both the assembly and the drawing on the same screen (for example, by a tile , Window/Horizontal tile).
@Gt22: I thought about it... Unfortunately it doesn't change anything. Whether it's a new drawing/new sheet format etc, the problem always remains
@Benoit.LF: I can sometimes have it underhand or completely closed. No visible differences (I attached the screenshot to open larger if you wish)
A call to the hotline?
They will ask you for the files and will be able to analyze better than us with images.
Good luck. Keep us informed.
It will unfortunately end like this I think:(
Thanks for the time anyway
It's good to give the best answers but better to understand the why and how of solving the problem mentioned above
@+ ;-))
Well yes it's a bit stupid! :/
You should have waited for the response from the hotline and put yourself in a better response with the explanation. That way, it would have been more visible to those who are looking for the same problem!
Well, I gained 40 points, but that's not the purpose of the forum:)
Arf yes ... I don't understand the principle of his points. And as the site bothers me so that I vote a better answer. Well, it will have been a happy ^^.
In short, so for the hotline, surprisingly, they don't understand where it comes from. Apart from telling me that it's a bug and that I should upgrade to the latest version. However, I don't have the impression that it is in the intentions of my manager to pay for a display problem :S
So they re-initialized my settings, losing all my configs. And indeed, it seems to be getting better.... Until next time!
So we are not much further along in the why and how