Animate 3

Hi hope someone can help. Im using a cintiq 13hd with medion erazer. and im having problems getting Animate to actually work. Its worked fine for ages then it started to be unresponsive once the program booted up. i can choose a frame to draw on but then nothing happens for about 30 seconds then i get the line. its like a massive lag. I downgraded the drivers to for the cintiq and his helped for a while. what i had initially noticed was that if i left the cintiq turned off, then booted Animate three and made a quick mark with the mouse then erased that line i could then turn on the cintiq and everything would run fine. but now that seems to have stopped working. cheers for any help you can give.