If you are posting regarding a specific software program please be sure to include the full version information in the post. This will make it easy for people to compare, and make your post and replies a more useful reference for the future.
Start the subject with the name of the program for posts about specific programs, e.g.
"CAMB: modified quintessence module"
Code should be quoted similarly using the Code button above the edit box. You can include latex by using \$ ..tex..\$.