I've just found a 'one click' solution for anybody having problems with choppy, stuttering or stopping streaming media, both audio and video and local and online, on their Acer Aspire One with XP, which will probably work on other laptops and PC's.
After searching for a solution for mine, including reinstalling drivers, crap cleaning, etc, etc, I found this website http://winhlp.com/node/10
with a link and all information about the problem. The script in the link automatically installs to the registry and resets the direct memory access for any of your drives, thus clearing the problem. It has worked a treat on mine.
Installation of the script is obviously at your own risk.
Please note the link will only work in Internet Explorer or Firefox.