@Tanax.

I´m just glad i could help.

I know how it is, Sometimes you don´t see your misstakes clearly if you have starred at a code snippet for a while. Then it´s good to have someone else to have a look.

And to clearify, the error seems to have been the unlink() functions strategic placement :) it caused the Thumbnail to get deleted. :)

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Of course the whole point of a doomsday machine, would have been lost if you keep it a secret.