Your swashplate is off.
Check to make sure that its not seperated and that its level.
Swashplate Leveling Guide
http://www.rcgroups.com/forums/showthread.php?t=642401
Go to this link if you want more links to ...link too

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Tips/Repair/Guides/Mods Links
http://www.rcuniverse.com/forum/m_68...tm.htm#6821632