Videos keep starting and stopping

Question

I cannot play videos from websites or YouTube, The video will
play a few seconds, stop for a few seconds or minutes. I have
uninstalled and reinstalled Flash.
OS: Windows XP Professional
Browser: IE 7 or Firefox 2.0.0.16
Connection: High speed dial up
Video Player: Flash 9
Thank you.

Answer 1

It is now working fine for me (knock on wood).
There are a couple of things I tried, so I am not sure if it
was a combination of these, or if something else changed. First, I
uninstalled and reinstalled the player a number of times. (After
doing this each time, however, it still kept starting and
stopping.) Second, I right-clicked on the player during playback to
pull up the settings, clicked the folder icon, and set the local
storage to maximum. (After doing this, however, it still kept
starting and stopping.) Third, I ran an updated version of
Ad-Aware, which caught and deleted more tracking cookies than my
virus checker was doing. The next day, everything on the Daily Show
site seemed to work fine (still haven't checked other sites).
So my suspicion is that some kind of tracking cookie
installed itself and was causing the problems. I hope it
helps.