Another Dolphin Browser HD bug...
 

I had posted previously about posts with quotes in them causing Dolphin Browser HD to give me a screen informing me that my request could not be completed because a security token was missing. This same screen also appears when trying to delete PMs. IB had at one point told me that this error was known to them and they did not have enough reports to narrow down a cause. Y'all can now add the process of deleting a private message to the list of things that can cause this error to be thrown. Thanks!