The only way I can start IDEA under Linux (Ubuntu Hoary) is by opening a command prompt, starting IDEA, and then leaving that command prompt open.
If you close the command prompt then IDEA will close instantly. Both Eclipse and NetBeans are much smarter in this respect. Probably that the start up script should fork a new process and it doesn't do that.
Also, it is impossible to add IDEA to a menu or a panel, it won't start at all. This could be related to the previous issue.
Does anyone know of a workaround?