vista and traktor 3
sick problem.
i upgraded my computer from xp to vista…
now whenever i wanna’ start up traktor it won’t start.
please help, i got a gig tomorrow…
By what means did you upgrade?
Without knowing much about what you did, I would try uninstalling Traktor and reinstalling it…especially since there is a dead line for a solution.
i would agree with constant. i run traktor on vista as well, no issues.
i would recommend setting up a seperate user account for traktor only, make sure nothing is running, turn off the screensaver, take the theme back to the classic theme (i have found this takes less processing power).
turning of unused services helps too 
Start->Run->Services.msc
But yeah i would be reinstalling Traktor to start with for the moment.
Failing in that i would be installing an XP partition purely for live music.