Following the Karmic Koala’s joyful reception last week, sentiments toward the FOSSy marsupial have become distinctly less enthusiastic in recent days — at least for some. “Early adopters bloodied by Ubuntu’s Karmic Koala” was the headline on a piece that ran in The Register on Tuesday, which chronicled multiple cases of frustration among some users upgrading to the new version. Still, the problems one is likely to encounter with Linux tend to pale by comparison with the security problems one is likely to have using Windows. Unless, that is, you’re using Wine.