I recently got a windows 8 phone. Even though I am really enjoying it I have a small issue. When I send messages (not email) though outlook I cannot delete the message history on my home PC in the side pane of outlook.com. No matter what I delete the messages remain on the side pane on my home PC. On my phone they are gone and in the message history they are gone. Is this a bug?

Also please note the message history is empty. That part I figured out. Its just that stupid side pane on the website that still keeps the conversations.

Original title: Cannot delete messages in side pane.