Can I have a little help with my Facebook?

WHY has it continued to say #!/ up in the Internet Explorer tab where it should say facebook or Jeff Davis for weeks now but it will change to one of those and be correct if I just hit the Home link? BROKEN?

I use Facebook on a clean and fresh Windows XP Tablet that had a clean install of Office 2003 and IE8 a few months ago. I do NOTHING dirty with it and it never ever leaves my desk. I use an external monitor, keyboard, mouse and have a MAXTOR One Touch backup drive and an Iomega CD-RW / DVD-ROM plugged into it all the time.