In the incomplete folder are two files called .bak and .dat If these get damaged they can cause incomplete files to not restart properly. It is also worth checkng in options>downloads>time to keep incomplete downloads, as the defaolt setting is 7 days.

This may be the answer, but a search of the forums will bring up many threads on the subject.

Also it is not necessary to double post as you will see in the forum rules.

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