No pen pressure sensitivity in CS3

I am running both Photoshop versions CS2 and CS3 on a Macbook Pro with Leopard 10.5.6 installed. I have downloaded the latest Wacom driver for use with my Intuos2 tablet. Running CS2 the pen's pressure sensitivity is working fine. Running CS3 however, gives only 100% pressure on every stroke, regardless of the applied pressure on the pen.
Can this be solved?

Do you have Pen Pressure enabled in the "Other Dynamics" section of the Brushes pallet?

That does the trick! Thanks a lot.
Obviously the default setting are different in CS2!

Be aware that when running CS2 under Leopard, there are usability issues that Adobe will not correct, as CS2 is long discontinued.

Neil