stepping back to a previous state

[cschaal]

I installed Ubuntu on a dead Windows machine and it came back. While using Miro, I checked a site on Firefox that said my flash player needed to be updated. Since Ubuntu was having a time getting the dependancies together I thought I would go ahead. Now Miro doesn't recognize the videos that are available to download like it did. In fact it is now useless. Can I "step back" in Ubuntu to before the ill advised download? I have no idea what files were downloaded exactly (totally dumbed down Windows-dependant I guess.)

Thanks for helping a newbie

[Mark Phelps]

Basically, unless you made a backup before you made the changes, the basic answer is no, there's no way to rollback to a previous state.