Droid Sending Texts Itself Upon Startup

Hi everyone. The problem Im having is that my Motorola Droid is sending texts itself whenever the phone happens to be restarted. I've had 4 Droids so far (fall, water damage, defective replacement, were the causes of death), and each one has done this.

The only common thread I've found in these phones is that, on all of them, I used Handcent SMS. In order to see if that was causing the issue, I removed the app from my third phone, and it continued to do this when I restarted it. It also persisted when I refrained from downloading the app altogether on my current one (figured if it was going to do it anyways I might as well have the helpful app, so I downloaded it now).

Any help you guys can offer would be greatly appreciated. Please know that the phone is pretty much stock (not rooted, no aftermarket batteries, etc.).

 

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Anyone have any ideas on this?