Middle click not working after upgrade to 12.04

After upgrading my middle click didn't work. I have a Lenovo Ideapad s10-3t which has a tiny touchpad. I used to press the middle area of the lower edge to get a middle click, to, i.e. close Firefox tabs, open links in new tabs and most importantly: Use the cut buffer to copy and paste.

I've read https://help.ubuntu.com/12.04/ubuntu-help/mouse-middleclick.html and it recommends three finger tapping (I can't change that behaviour anyway, can I? The mouse settings dialouge doesn't allow me specify whether I want to have three finger tapping for middle click). Anyway, according to xinput, my touchpad only recognises two fingers:
⎜ ↳ SynPS/2 Synaptics TouchPad id=14 [slave pointer (2)]
 Reporting 8 classes:
  Class originated from: 14. Type: XIButtonClass
  Buttons supported: 12
  Button labels: "Button Left" "Button Middle" "Button Right" "Button Wheel Up" "Button Wheel Down" "Button Horiz Wheel Left" "Button Horiz Wheel Right" None None None None None
  Button state:
  Class originated from: 14. Type: XIValuatorClass
  Detail for Valuator 0:
    Label: Rel X
    Range: 1472.000000 - 5570.000000
    Resolution: 81000 units/m
    Mode: relative
  Class originated from: 14. Type: XIValuatorClass
  Detail for Valuator 1:
    Label: Rel Y
    Range: 1408.000000 - 4654.000000
    Resolution: 147000 units/m
    Mode: relative
  Class originated from: 14. Type: XIValuatorClass
  Detail for Valuator 2:
    Label: Rel Horiz Scroll
    Range: 0.000000 - -1.000000
    Resolution: 0 units/m
    Mode: relative
  Class originated from: 14. Type: XIValuatorClass
  Detail for Valuator 3:
    Label: Rel Vert Scroll
    Range: 0.000000 - -1.000000
    Resolution: 0 units/m
    Mode: relative
  Class originated from: 14. Type: XIScrollClass
  Scroll info for Valuator 2
    type: 2 (horizontal)
    increment: 104.000000
    flags: 0x0
  Class originated from: 14. Type: XIScrollClass
  Scroll info for Valuator 3
    type: 1 (vertical)
    increment: 104.000000
    flags: 0x0
  Class originated from: 0. Type: XITouchClass
  Touch mode: dependent
  Max number of touches: 2

So there seems to be a bug in Ubuntu forcing me to use three finger tap altough I can't do it.

I can get my behaviour back by doing "synclinent EmulateMidButtonTime=75".

I expected Ubuntu to not have that regression in first place, then a way to tell Ubuntu whether I want (or can) use three finger tap and then activate that option mentioned above automatically if I only have a two finger touchpad.

What would be my best solution? Running synclient on every boot? Where would I put that best?