WLM. Storage folders have disappeared

I am using Windows Live Mail on an H-P desktop running Windows 7 (64). I had numerous storage folders listed in the left hand pane when I opened the mail program and they have disappeared. The folders still exist as I can move emails into them but I need to see them when I open the program. These folders were listed under STORAGE FOLDERS and were listed that way when I moved my email from another program. I would appreciate help on how I can restore the names of the folders on opening the program.

Thanks, Roderunner. Under Storage Folders, I have Drafts, Sent items, Deleted items, and Imported Folder. When I click on Storage Folders in the View window, Storage Folders in the left pane disappears. I think I need to expand the Imported Folder but I don't know how to do that.

Okay, Gang, this is where we are. I decided to recreate all the storage folders under Import so I clicked on "new folder". With that all of my storage folders appeared in the box. I tried to copy them but when I tried to highlight them, they again disappeared. Scared me. I canceled and went through the "new folder" process again and they are back. I don't know how to get them from that box over to the left pane like they were before. They are there. I just don't know how to place them where they were.

Thanks, gang. I am embarrassed to report that rebooting fixed the problem and all folders are in their appointed places. Sorry for taking up your time. Memo to self - Remember to reboot FIRST.