HT1661 Imac 2009 imac 2013 target mode did only work one time

My 2009 imac has a broken graphics card. The imac stats up as usual and is ok. To copy some files to my hew 2013 imac id use an thunderbolt to firewire adaptor.
At the first attemp to start up in target mode, is did work very well. The target disk showed up at the new mac and all files were available.
After this succesfull target mode connection, I have problems to get it n a target mode again. After the first time, I cant manage to get it in target mode for the second time. Or I can start up in target mode (without display hard to check) but it don't show up on the new imac.
What am I doing wrong?
Leon

If by DU you mean the Apple Disk Utility program, it is located in Applications/Utilities.
Are you saying you can't run that version?
As far as restarting in Target Disk mode, have you tried to change your Startup Disk in the control panel?
It sounds like your iBook is having problems reading the DVD. An external firewire DVD drive can be attached to either machine. External Firewire/USB cases can be gotten for under $30 and new Sony DL DVD burners can be gotten for under $30.
I built my own external drive that works on all of my Mac's and PC's.

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LPBassman,
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HT1661 Imac 2009 imac 2013 target mode did only work one time

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