How's your internet download speed? We talked to one user with the same problem and found out his internet speed was very low.
TIPS that could help
-if you have software security (ex: Norton, MacAfee, etc.); make sure you allow ComicBase internet access.
-rate your current download speed: Visit speedtest.net to see what it is.
-if its too low, a simple thing could be just to restart your internet router then retest the speed. If the speed is better, re-try to install the pictures for the software
-if that doesn't work and your speed is too low, contact your internet service provider for additional help.