Tablet and CS 4 not working

[mjs1973]

Is anyone using a graphics tablet and PS CS4? When I try use my tablet with the brush tool to brush in a mask, all it's giving me is a straight line. Sometimes it works fine, and then all of a sudden it stops. It makes a straight line from the point where my pen touches the tablet, to the point where I pick up my pen. So if I use my pen to draw a circle, all I get is a straight line. The brush tool with my mouse works fine. I never had this issue with CS3.

Something else I have noticed with CS4. I have script I use for adding a frame and copyright to my photos. Sometimes it works, sometimes it doesn't. If it doesn't work, I close PS, reopen it and then it works. This closing PS and reopening it also works to fix the pen issue...