Hi, I thought it might be a version issue. But I just installed 018, and it has exactly the same issues as I had with 017. It loads very slowly (almost the time it would take something like NetBeans to load) and it's very slow when I try to open Tools item on the main menu - the IDE gets stuck for a few seconds.
I've removed the content of "arduino-0018\java" folder like I did with 017. My Java version is 1.6.0_17 and I'm on Win7