I think you must have the program itself pinned, so that every time you click it another instance gets fired up. Try this:
- Turn off Hide When Minimized (using the icon in the system tray, bottom right)
- Unpin Outlook from the task bar
- Make sure there are no instances of Outlook running
- Start Outlook, then hit its Minimize button to shrink it down to the task bar
- You should now have a button on your task bar for Outlook, not pinned
- Click on that task bar icon
- Tell us what happens

My Computer
At a glance
Windows 7 Enterprise x64Intel i7 9206 GBnVidia GTX260 + nVidia 3D
- Computer Manufacturer/Model Number
- Custom
- OS
- Windows 7 Enterprise x64
- CPU
- Intel i7 920
- Motherboard
- Asus P6T Deluxe v2
- Memory
- 6 GB
- Graphics Card(s)
- nVidia GTX260 + nVidia 3D
- Sound Card
- Onboard
- Monitor(s) Displays
- Samsung SyncMaster 2233RZ
- Screen Resolution
- 1680 x 1050
- Hard Drives
- 1 x 64GB SSD primary
2 x 1 TB (mirrored)
- PSU
- 700W
- Other Info
- Edimax 802.11n Wireless PCI Card
Netgear DG834G router

