Manga Studio 4 problem ! please help

Okay ... so i was trying to work again on my manga First Crush and something "neat" happened <3. When i try to use any tool a straight vertical line appears and my actual drawing moves 5 centimeters below or smth like that ... i really don't know what to do -_-. My tablet works fine because i tested it in Photoshop,Sai,Paint and it's ok ... If there won't be a solution to this i will have to reinstall MS4 and it's quite a pain TT^TT.

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