The type of graphics card you have in your computer can affect the way the program’s graphics are displayed on your screen. If the display seems unstable or contains some graphic artifacts, here are some tips on how you may be able to improve the display:
Lower your screen resolution (to 1024 x 768, for example) in the Windows Display Properties dialog. To access this dialog, right-click your Windows desktop and select Properties. In the Display Properties dialog, select the Settings tab.
Lower the color setting in the Windows Display Properties dialog box. For example, if your colors are set to True Color (32 bit), change the setting to High Color (16 bit).
Disable pre-selection. Pre-selection displays tooltips on elements as you hover over them with your cursor.
Disable interactive lighting, which is the real-time lighting effect you see when you insert light fixtures in Rendered or Rendered Outline display mode.
If the above methods fail to improve the graphics display, disable Hardware Acceleration.