Have a Droid X and have had it for about 4 months now. Have been using it with active synch (Exchange 2003) since I got it and it has been working fine. I have it setup to check for mail every 15 mins.
Last night it just stopped getting the email every 15 mins. I must get the email manually now.
I deleted the account , rebooted the device and then added the account back, but it still will not auto-synch... It will get my email manually but it will not get my calendar or contacts.
From what I understand this happens all the time.