I Installed Windows 7 on my Satellite Pro A200-1S1, retrieved all the drivers on Toshiba site, everything works fine (less than the web camera that didn't work even with previous s.o. XP or Vista...). But my Touchpad doesn't work at all.... No Fn+F9, no driver, nothing works. And in my control panel-device manager seems to be everything ok.
Never had any problems with the touchpad using Win 7 32bit.
I recommend installing VAP (value added package) and Flash Card Support Utility to get the FN button functionality. Then you could try FN + F9
Both tools can be downloaded from Toshiba European driver page… there you should choose Sat L500 series because I didn’t find mentioned Win 7 software for A200 series.
Check also the touchpad drivers which I found in L500 download area (Alps a Synaptics)