We've just been alerted to an unsettling trend in Palm Pre land, where strings of replacement devices are a bit too common for comfort: some users have been losing their Palm Profile backup, or a large majority of it, once they pair up their new device. The big issue is that since this problem is rather sporadic, Palm doesn't seem to have a good way to deal with it yet -- the trend in the forums seems to be a complaint sent to Palm, followed up by word of an inability to restore data from Palm a few weeks later. Lucky for these hapless Pre replacers, a particularly repeat offender (working on his seventh Pre) has posted instructions for making sure this sort of data loss doesn't happen to you. His theory is that it has something to do with a refurbished device loaded with an old firmware trying to syn