I have used CC2 Pro on and off under various Linux installs, and it has worked. Some little hiccups I have noticed include the "Save" or "Save as" dialog sometimes won't let me edit the filename to save as, unless I choose exit, and it then asks what name to save as. Other than that, so far no issues. Install straight forward, usage performs VERY well. Have tested with Suse 10.3, Ubuntu 7.x and 8.x, and most recently Suse 11.1 (with crossover pro 071106).