I always use the latest stable Ubuntu. I've not had problems except on 64bit with no fonts showing up even with all 32 bit compatibility libraries installed. Mostly I end up trying to help people in the build channel. - Usually its something went wrong with the download, they forgot to make it executible, or some other common problem but a few times - 3 or 4 - people have had some unusual just plain jane crashes when launching and I can't ever figure out why. Some were on ubuntu - thought it might be the switch from bash to dash, - changed that around and nothing - I've never had major problems myself either though.