Welcome to the forum. I'm not a hardware expert by any stretch of the imagination, but that may be a graphics card problem. Can you post your system specs? I'm sure someone can look and tell you if it's likely to be a graphics card problem or something else.
I send you the information about the graphis card
NVIDIA® Quadro® K4000 – Supercharged NVIDIA Kepler™ Architecture Performance and Quad Display Support Enhances Professional Productivity and Creativity
The NVIDIA Quadro K4000 graphics board offers ultra-fast performance and visual quality enhancing technical innovations that take a wide range of leading professional applications to the next level of performance and fluid interactivity. You get 3GB of GDDR5 GPU memory, 768 SMX CUDA parallel processing cores, the ability to drive up to four displays simultaneously, and full Shader Model 5 compatibility; all in a single slot form factor requiring significantly less power than competing graphics products.
Designed and built specifically for professional workstations, NVIDIA Quadro GPUs power more than 150 professional applications across a broad range of industries including manufacturing, media and entertainment, sciences, and energy. Professionals trust them to realize their most ambitions visions – whether it’s product design, visualization and simulation, or spectacular visual storytelling – and get results to market faster, more profitably, and with superior visual quality.
SMX CUDA Cores
PCI Express 2.0 x16
DVI-I DL + DP 1.2 + DP 1.2
PNY Part Number
PNY provides unsurpassed service and commitment to its professional graphics customers offering: 3 year warranty, pre- and post-sales support, dedicated Quadro Field Application engineers and direct tech support hot lines. In addition, PNY delivers a complete solution including the appropriate adapters, cables, brackets, driver CD and documentation to ensure a quick and successful install.
Did you run the SolidWorks Rx tool?
Yes, I Run the SolidWorks Rx Tool, the diagnostic looks ok
Run the SolidWorks Rx and see what it reports. This is usually an indication of a graphics card issue.
Do you have an approved graphics card and driver for your version of SolidWorks?
I installed the drive for the graphics card and SolidWorks version.
Your CommandManager looks empty, so maybe it is related to that. Try turning off the CommandManager and see if the problem goes away. If so, then you know it is related. If so, you need to figure out why it is empty. Go to Customize and see if all the tabs are set to hidden for starters. Maybe try dragging the CommandManager off so it is floating and put it back to the docked position. I haven't seen this before so I'm just giving some things to try to troubleshoot.