Many years ago I tried using multiple desktops through some factory-installed software (NVidia Desktop Manager, or something like that) on my work computer. It was nice when it worked, but would often crash, lose my windows, and behave oddly with applications whose windows weren't allowed to be resized.

I'd like to try multiple desktops again but was hoping for some recommendations for stable, lightweight software. I say "lightweight" remembering how NVidia's software was bloated with loads of crazy options, which I suspect was responsible for its instability.