Why are the images on the display distorted or afterimages remain sometimes when the VAIO computer starts up?

Why are the images on the display distorted or afterimages remain sometimes when the VAIO computer starts up?
or
Why do belt-like or box-like noises appear momentarily, the images on the display are distorted or sometimes remain as afterimages on the Liquid Crystal Display of my VAIO computer in the following situations?
- Immediately after turning on the computer or when the "Windows" log appears
- Immediately before the Windows desktop appears
- When the system moves to standby mode (system suspend) or resumes from the standby mode
- When the system enters into the hibernation mode or resumes from the hibernation mode

This symptom occurs due to a change of resolution by the graphics accelerator. It is not a problem with your VAIO computer and you may continue to use your computer as it is.