If so, try it with the Chrome Web Browser next.
When I open my inbox things work ok. When I try to open any other mail box (ie: junk mail, deleted, or personal boxes from family, like my daughter's) it will open the box long enough for you to see there is mail but than closes it and goes back to the genral inbox. Never allowing you to act on the mail in the box you were trying to open. When I go to my husbands computer I can get in no problem but my computer won;t let me. He has Vista not 7.