Is anyone have ever got the same problem like i do ? I've already try in Adobe and the pressure sometimes went off ... I've already try in different PC, and i think theres no problem there... my pc is a little bit lag when try to do sketch, i have tried to draw but not for long time... I've not try my tablet on mac btw, the bamboo seller told me that in windows the pressure always unstable.. once the windows have some problem, sometimes it affect the pen pressure... is it true windows user ??? I have update the driver... have restore windows system... buts still... unstable pen pressure... plz.. really need help..
Go to Start -> programs -> Bamboo and run the tablet preference utility. Select to remove the settings for all users, then test the tablet. If that does not succeed, download and install the 5.24 driver version from this site.
The problem may be that SAI detects information about 2 tablets. It always wants to get the pressure information from the first installed tablet, while coordinates are accepted also from the second tablet. If you disable the not needed driver (stop the service 'TabletServiceWacom' for Intuos, 'TabletServicePen' for Bamboo), you may still have to reset the driver (remove the tablet preferences with the utilities from Start menu -> Bamboo/Wacom Tablet).