I'm having trouble with the quality of thumbnail images for videos I have inserted into a page using the videopress upgrade. The quality of the video playback itself is fine, but the preview thumbnail image appears pixelated/lower resolution. Is there any way I can improve the quality of the thumbnails? I've searched support and forums for clues but have found nothing so far. It's worth stating that the thumbnails look ok on ipad, but not on larger format screens.
The blog page in question is: http://ajpoyiadgi.com/commercials/
Many thanks in advance.
The blog I need help with is ajpoyiadgi.com.