I have a DroidX, running Gingerbread and it's not rooted.
For about a month the "Phone Options" menu has been popping up automatically and repeatedly with no action on my part. It happens more often when the phone has a lot to process, such as a several downloads at the same time or several text messages being received shortly after each other. It even happens when I'm not using my phone.
I haven't been able to find any posts with the same or similar problems.
I've cleared my cache, twice, and I've done a factory data reset, twice, and it continues to happen.