This may not be the same model as yours, although it is very similar.
https://wiki.ubuntu.com/LaptopTestingTeam/ToshibaSatelliteM40-281 Depending on the manufacturer of the BIOS, you may have trouble with bluetooth on it - http://ubuntuforums.org/showthread.php?t=316358&highlight=M40-281 Sorry for this brief information, but I hope it helps you a bit. Good luck.
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