The black screen is usually a symptom of the content actually using flash 10+ features, so not visible to flash =< 9. Just to clarify: - how long ago did you try to view these videos before installing kp49, i.e. could the provider have changed flash version since you last visited? - did you install anything other than kp49 itself, what about settings package etc? What happens when you remove flash-tweak? If msg appears "need flash10+", try reinstalling. Any improvement?