I am an airline pilot, and thus I have to turn the phone off (acutally I put it in airplane mode because this phone takes 90 seconds to boot and the power button is a hair trigger to turn the phone back on accidentally) when I'm flying to prevent the battery from running down when out of cell tower range.

The problem is, I seem to lose text messages when while the phone is off or in airplane mode. Is this a sprint problem with CDMA (I just switched from ATT and never had this sort of problem) or a problem with the htc hero? SMS messages sent to me while my phone is off-the-air are not downloaded once it comes back online. Does sprint delete messages if they can't be delivered to the phone right away?

This is my biggest irk with the phone/service right now. It's causing problems with "the ladies"

A few weeks ago, when I got the phone, I talked to tech support and they had me update the profile a whole bunch of times because I wasn't recieving messages from outside the sprint network.

I use the stock sms app. Also, I update profile, PRL, and look for firmware updates about once a week.