line problem

i have downloaded the trial version of storyboard proand i am using intus 3 tablet…but, why my line comes more later after my first stoke…??..i am using toonbomm studio and animate also…no problem with that in the same PC…any solution?Regards,Arif

What operating system are you running?

What is your graphics card?

Do you have the latest drivers installed on your graphics card?