I recently Installed office 2007 on my computer and synced outlook with my yahoo mail account. Now after doing so, I can not view old messages on my phone (which is also synced to my yahoo mail) or yahoo itself through the website unless I search for a specific email. If I am away from home, I can view any messages I receive through the phone, but the second I open outlook, they disappear from my phone.

I tried clicking the "leave copy on server" box, but that still doesnt let me view all the old messages on my phone nor yahoo.com/mail. Does anyone have a solution for this? I send a lot of messages from my phone and really need to view older messages when im not at home. Thank you.