Hi, i have search the site looking for this issue. My palm pre was working great at first. all the txt and gmail threads showed up in the messaging tab. well the phone started to really slow down "i thought it was cause i had a lot of chat threads saved with pics in them" so i deleted some of the threads. then when i got a new txt msg from some of those people's whos threads i deleted it will not show back on the messaging tab. in order to view their msg i have to hope i catch the buble notification otherwise i have to look them up in contacts and click on their sms link and then it will bring up their chat thread. whats really weird is some peoples chat threads came back to the messaging window but others didn't. i've reset the device and no luck.