Perforce integration has not completely worked for me in Selena builds since 6951 (both 6981 and 7002 exhibits problems). There are various places where I see problems, but the easiest is selected "Update Project..." from the Version Control menu. When doing so I see the following error message: "Error:Path '/Users/reden/Documents/NEXVU/projects/mainline/...' is not under client's root '/Users/reden/Documents/NEXVU/working/'."
"/Users/reden/Documents/NEXVU/projects/mainline/" is my project location and is indeed not under my version control root location. I have no idea why it's trying to sync something in that location.
Here's my configuration information:
Platform: Mac
IDEA is using JDK 5 (note: I do have JDK 6 installed, but I edit IDEA's config to make sure it runs under 5)
Perforce is not using P4CONFIG.
Port: perforce.nexvu.com:1666
User: reden
Client: reden_galaxy
Password: <set to a non-empty password>
Use login authentication: no
Use native Perforce API: no
Path to executable: /Users/reden/bin/p4
Does that fix the problem for you?