Problems with Mac Office 2011 - Outlook

I have just invested in an iMac having switched from a Windows computer which failed catastrophically. I have loaded Office:Mac 2011 -- with no problems. My e-mail works fine as does my calendar. However, I have a problem with Tasks. When I add new tasks they don't appear in the tasks list although I get appropriate alerts and can see them on "My Day". I cannot fathom why this is. I have Rebuilt my Identity Database as per instructions but am baffled what to do next. I only have one identity so it's not a multiple identity issue and have checked all my settings and they appear to be correct. The Tasks should be on "My Computer" - that's what the settings say but I can't understand why I can't see them. I'm totally frustrated. Any ideas?

I moved your post here where you're more likely to get a response to your question. Also edited your title somewhat which should help.

And, Welcome to the Mac Forums.