I d/l'ed PostBox Express and I had two copies of the same Veteran's emails, already on my inbox. I clicked on one and a Alert box shows up with with a bunch of computer gibberish. I tried closing it and that didn't work so the first time I did a reboot of the computer. The next time I minimized it and then was able to close it. The next time that didn't work but I did just close it using the secondary button on the mouse. I'm not sure I will be able to use PB Ex. and will have to go back to Thunderbird.