Presumably it is a USB connection? Is the cable maybe too long, or perhaps your laptop is working on battery rather than mains? Sometimes they need to be powered for an extended time of transfer that might be expected with a film.
Otherwise you could try Digital Spy - they have a Humax PVR section and probably better for the UK-based PVR machines. I got a lot of info about my Thomson DHD4000 from there… see here:
Please do report back here though if you manage to solve the problem … and especially if you have further questions about converting or burning to DVD!