Can't run youtube vids on old laptop

[Lethagized]

I'm using the latest lucid puppy on an ancient sony vaio laptop that i use in my shed or when i'm out in the garden. I can't seem to watch any youtube videos on it. The sound is there, but no picture. I think the hardware is too old to play even the default resolution of the videos, so i need something that will select the lowest resolution for all youtube and flash videos. Something like a really old version of flash that will still be compatible with youtube.

Has anyone got any suggestions?

 

[Lethagized]

Specs are here

 

[Lethagized]

Well, the thing is, i had it for nothing and it does what i want it to do in my gym down the garden. It's currently running Xp Pro because i didn't get on well with puppy. As long as i can read pdf files, run spotify and browse the web, that's all i want. The only thing it doesn't do so far is watch flash videos.