That type of graphics anomaly is typical when using a Radeon or GeForce video card. They are intended as gaming cards, and are not suitable for a CAD workstation.
Run the SolidWorks Rx tool (Start > All Programs > SolidWorks 2012 > SolidWorks Tools) to show the 'computer guy' that he made the wrong choice. Especially as a (probably) suitable approved card is about half the price of the one you have.
Thanks Kelvin, video card is what I was suspecting and you helped confirm it. Hopefully a new card in the next few days...it is quite frustrating working with this one.
You might check the Use Software OGL box and try it like that. It will make SW ignore the graphics card and graphics stuff will be a bit slower. However, that may be a better short term working condition if what you have is not good. You can check the box when you have no docs open.
i have mac os x version 10.6.8
Processor 2x2.4 ghz quad-core intel xeon
Chipset Model: ATI Radeon HD 5870
i use parallels desktop with window 7 to install solidworks composer.
i have the same black screen.
any suggestion about my mac?
I'm not too familiar with Mac machines nor Composer, but I imagine the same problem applies with gaming cards (Radeon & GeForce). Unless you can change the card for an approved one (http://www.solidworks.com/sw/support/videocardtesting.html) all you can do is experiment with different drivers and hope for the best.
You could try enabling the Use Software OpenGL option, but I suspect that has already been done automatically.
Run Solidworks RX and see if this card is supported and if you are running the suggested video drivers.
I have the same issue,
I used to work on windows 8.1 and it works fine.
now I downgraded my OS to win7 ultimate and I got the black screen issue, I have tried running Solidworks RX but my PC's vendor is not listed
here is my PC's spec: ASUS core i3 intel HD Family
I think I have to reinstall my PC