I downloaded the new 4.0 software for my iPhone yesterday. I have Exchange so I can get my work email on it and as per usual it re-set my passcode lock to 5 mins as the max time allowed. Previously I have used the configuration utility to change the passcode restrictions back to something more than the irritating 5 mins. I tried this but this time it when I install a new profile with less time restrictions it doesn't change. I am also getting a "certificate" window that I don't remember from before that says "This certificate was signed by an untrusted user".
Any ideas on how I can change the passcode lock time?