Is there a way to synchronize the profiles, such as the porfile on my main PC as well as on my USB. I've noticed that when I go to get new mail on my USB, if I've already got it on my home PC then it won't show on my USB. I'd hate to have to copy the pc profile to the USB everytime I want to update my inbox. Plus if I receive something on PTB then my regular Thunderbird won't get it. These portable apps have been a lifesaver. Thanks for the effort and time.