If Webcelerate Accelerator's graphics acceleration level is set to 3, 4 or 5, some ads and/or images can appear in gray. The reason this happens is that in order to send the highest quality image using the lowest number of bytes, colorizing instructions are removed. Thus your best performance will be at the higher graphics acceleration levels. If you are using Internet Explorer you can restore color to a particular image using a right-click mouse command. You can also restore the original of the entire page that way. If you prefer to not see any grayscale images, set the graphics acceleration level to 2 (default) or 1. For complete details on using Webcelerate Accelerator's graphics acceleration options, Click Here.