Guess I pretty much explained what is happening above. Its a new Dell with installed Microsoft 2010.
I would suggest you to change the View settings in Outlook 2010 that may fix the issue. Please follow the steps below:
Click on View tab-> click on Change View-> Compact (and optionally set the Arrangement to Date)
Or another option is, you can reset view by clicking View tab -> click on Reset View
Please reply with the results.
Thanks and RegardsPriyanka S#iworkfordell