oik-nivo-slider thumbnail parameter
The oik-nivo-slider thumbnail parameter enables you to choose the size of the images to be displayed in the slider. This is particularly useful when the “full” size images are significantly larger than the space you have allowed for the slider. The oik-nivo-slider code has to take into account the different routes taken to find the images to be displayed.
The links below show the results you can get with different combinations of parameters.