Quad crash after sudden no input control and APM not controlling quad, help

Hi,
My arducopter board is doing strange thigs. After I used the openpilot cc board on my quad for several months and got a reliable stabel flight and hover, I bought the arducopter board as it had the altimeter and gps.
My sun and I spent a week of setting up and trying to get it stable enough to hover.
Recently we tried again and it hovered fine for 4 min and then there was no control and it drifted to the left and chrashd 3 secs later, as if the board had a glitch or someting.

Can anyone look at the log of that flight to see what went wrong? Look at around line 2300 and notice strange things. I do not understand what those things mean, but it looked wrong to me.
I cannot trust this bord any more!
Can anyone help me.
Charl

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I solved the problem. After downloading and installing the new ArduCopter 2.3.zip firmware the problem seems to be gone.

I also rebuilt after crash and made a hexocopter. The default setting worked first time and flies very stable. No wobble on take off. Today I will try the altitude hold with more confidence. Will update my findings soon.

Sorry the firmware i was talking about was wrong, it is the V2.4.1 that is now installed.

The 2.3 is the one with issues.

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