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The wheels may have springs that keep them in contact with the track when the door is lifted up. If so, use a flat screwdriver to push up each wheel while holding the door up, then move the door aside an inch or so before releasing the wheel. It's usually easier to do each wheel separately, especially if you don't have a lot of help.
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And you believe Bush and the liberals and divorced parents and gays and blacks and the Christian right and fossil fuels and Xbox are all to blame, meanwhile you yourselves create an ad where your kid hits you in the head with a baseball and you don't understand the message that the problem is you.
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