Hi, as I am follower of gas turbine/jet engine technology, I LIKE to view the many demonstration videos that the manufacturers have on their products, describing their operation etc.  Recently, found that a lot of the product videos required that I had to have the above Flash Player installed, (they worked before so maybe I accidentally deleted something),  however, after much trials, I finally MANAGED to get the product to reinstall.  The interactive contents of the above demonstrations now RUN but the video content is poor with juddering of the video and stuttering style speech content.

My system is Windows Vista Home PREMIUM edition on an Acer Aspire 5610Z Laptop with 2GB ram i wonder what browser you are using (firefox, internet explorer .... etc) and provide a link of what you are looking at that's having problems?

Anyhow, for now I would try out uninstalling the adobe flash player completely, then booting to safe mode and reinstalling ?Also the SPEED of your internet connection will affect playback qulity as well.
And the servers feeding you the video as well...what sites ? ?