I don't have Windows 8 yet 
Good! I tried Windows 8, but the driver support for Wacom tablets is so bad!
It introduces cursor lag, random double clicks, right click drag has slow down, right click doesn't even work in some applications and there's tons of other issues (just check their
forums!). You can't fully disable the integrated Microsoft tablet features like Ripple cursor!
The shocking thing is, Wacom blame Microsoft and Microsoft blame Wacom... and still nothing has been done to fix the drivers since Win8 was released!
I was forced to roll back to Win7.