Hello bhuppi
One thing that I noticed in OS X 10.5 is that the mouse movement is not consistent. If you move the mouse slow then the curser will only cover a short distance and if you move the mouse fast it will move the curser a greater distance.
Here are a few things that you might try:
1. First try a different mouse pad, one that has a solid color with a dull finish.
2. Set the tracking speed to fast, then train your hand to move slow if you only need to move the curser a little and to move fast if you need to get all the way to the other side of the display.
3. If you have some knowledge of or use the Terminal, you also might try boosting the Mouse speed up to 5.0. or 6.0 following the instructions in the article below:
http://www.tylernichols.com/apple/speed-up-mouse-tracking-on-mac-os-x
Dennis
Message was edited by: den.thed
Aha' I see that Dave has posted an excellent solution for speeding up the mouse curser.