I meant to write more information in the comment above, but here it is:
I have a family member who uses Ubuntu exclusively and enjoys playing Solitaire for hours on end.
Her computer has been crashing quite often. I'm not usually around to witness it, but every time I asked, she responds saying that all she was doing was playing Solitaire and she doesn't know what else happened.
Everything was stable in Ubuntu 9.04 with almost exactly the same configuration.
Additionally, Compiz is disabled if that makes a difference.
I meant to write more information in the comment above, but here it is:
I have a family member who uses Ubuntu exclusively and enjoys playing Solitaire for hours on end.
Her computer has been crashing quite often. I'm not usually around to witness it, but every time I asked, she responds saying that all she was doing was playing Solitaire and she doesn't know what else happened.
Everything was stable in Ubuntu 9.04 with almost exactly the same configuration.
Additionally, Compiz is disabled if that makes a difference.