I have used the stock Yahoo app since I got my Droid X almost 2 months ago with no problems. The last 2 days I have had consistent problems with the sync and I have had to manually prompt it to check for new e-mails after it has been a period of time and I know I would have new e-mails in that account. I have not changed any of my settings, downloaded any apps or done anything that I can think of that could have in any way effected my Yahoo email. The GMail still comes through fine. Has anyone experienced this problem? Any suggestions?