My computer freezes for brief periods when I am watching a video clip. What can I do to run videos, movies without my computer freezing for short periods?

Hey neil
Check your ram if it is lower then upgrade it
N your processor plays a important role too it should have video adapters

3. Run the anti spyware remove programs spybot
Security News from the net: Spybot search and destroy spyware and popups

And superantispyware
Security News from the net: SUPERAntiSpyware Home Edition (free version)
To get rid of the nasties

4. Run a free online virus scan to be sure you computer is virus and spyware free.
Security News from the net: Online virus scan

5. Get the clean up tools to clean up the spyware from your temp folder (the place they are stored when downloaded by internet explorer)
Security News from the net: Clean up tools to prevent people from tracing your internet surfing