CINTIQ 21UX lines in Photoshop cs are not smooth

[creativeboytv]

Just got my new Cintiq 21ux this week....love it but when using Photoshop CS the lines are not smooth even when I use a ruler etc....have used a tablet for years so it's not practise but the software or something ???.....I do have smooth enabled in the Brush Dialog box so that's not the problem. When I sketch in Alias Sketchbook Pro and Corel Painter IX the lines are perfect and smooth.......Anybody have a similar problem and a solution.....any help would be appreciated...
Cheers Mike

[Creatinity]

It happens to me with all Photoshop versions combined with Vista...with an intuos 3...but also when painting with mouse...
i have no explications, no solutions...every other software is fine...

then i tried back with XP, same problem...while it never happened before...
the only thing i changed: graphic card, i switched to nvidia.

[creativeboytv]

I used an Intuos tablet before and had no problems.....Now that I updated and got my Cintiq 21UX wobbly lines are happening in Photoshop.....there has to be a solution somewhere....especially when Painter and Alias Sketchbook have super smooth line quality........

[creativeboytv]

Here is an image of what I am describing about line quality with Photoshop using the Cintiq 21UX

Click on the link below and click on image to enlarge....see the difference!!!!

http://creativeboytv.deviantart.com/art/CINTIQ-21UX-Line-qualities-72022346

Here is a link to my website

http://creativeboy.tv

[`rawr]

sketchbook and painter autosmooth your strokes so that explains why they're so much smoother... another thing in ps is the larger your brush, the more evident the spacing appears. I can't say whether or not your lines were smoother with an intuos but i can say that cs3 is useless on my cintiq, but then again so is the upgrade imo. haha, no real help. just my observations with a similar setup.

[creativeboytv]

Problem Solved......with Photoshop CS4 the wobbly lines are no more...hurray