OK i am using Flash cs4 and i am using crappy windows vista, and i am using my wacom tablet and when i use the brush tool i dont see the pressure sensitive tab which is making my lines uneven etc., do i need to reinstall flash.When i use flash on my other laptop it works does flash not like vista?
Make sure that you have the latest Wacom drivers installed and active (tablet plugged in, etc), and then restart Flash. I have found that sometimes the driver sometimes becomes non-responsive. You shouldn't need to reinstall Flash (I've never had to, so far for me it has always been the driver).
If you're on a Mac, you can try drawing something and then just de/reselecting the Brush. Sometimes it doesn't "take" on the first go (this is very intermittent, and doesn't occur on all machines - so a bit of a long shot).