Thinkpad trackpoint: scrolling and middle click possible?

Here is a work around just posted using Autohotkey to simulate a scroll wheel while holding down middle click after a certain amount of time:

http://forum.notebookreview.com/threads/ultranav-middle-click-button-scroll.423415/

I'm a thinkpad only guy... and this issue bothers me a lot too. Running Windows 8 currently and finally found this little app that does the trick very nicely. Works with previous versions of windows too! https://github.com/summivox/misc_bin/raw/master/tpmiddle-0.5.exe

Just place it in your startup. Basically... if you press the middle button and don't scroll it will execute the alternate action. So, in browsers usually it will open a page in a new tab. More details in the link, but this solved my issue.

I'm unsure if this affects your Thinkpad, but it worked on mine:

Open up the mouse properties and open the Ultranav tab. Click Settings... and change the Scrolling Type to Smooth.

On my system, a middle click works as expected unless held down. Then it acts as a scroll wheel.