It's been a while since I used LTSpice, but it always worked on Wine no matter which distro I was running. However, I recently installed it on both Mint 11 and Mint 12 and had the same problems. The first problem I noticed was when I installed it, it placed the desktop configuration file on my Mint desktop. I had never seen that happen before. The second problem was that the application would launch fine if I either opened the desktop configuration file directly or copy and pasted the command it had in its properties window to a terminal window and executed it. The app would not run from the menu. All that would happen is an error message, "File not found". The desktop configure file command was: env WINEPREFIX="/home/carltons/.wine" wine c:\\Program\ Files\\LTC\\LTspiceIV\\scad3.exe The Wine menu command is: env WINEPREFIX="/home/carltons/.wine" wine c:\\windows\\command\\start.exe /Unix /home/carltons/.wine/dosdevices/c:/users/carltons/Start\ Menu/LTspice\ IV.lnk I've listed all the paths in both commands and all the files exist in the correct sub directories. I also checked the lines to make sure that all the spaces and \'s were escaped properly. I'm really at a loss as to where the missing file is. The other real puzzlement to me was the /Unix of the menu command, but I'm not familiar with the syntax of this command, I'm not a software engineer by any means. I did a : sudo find / -name \/Unix -type d and got no return. At that point I just thought that maybe the command was off into the cloud to retrieve it before finally returning its output. I am well past my capabilities at this point. [Embarassed]