Thanks but I don't use a download manager. How do i check the md5 hash?

I've just downloaded the Chipset Driver Pack again and 7zip's 'Test archive' function reports 88 'File broken' data errors.

I'm having no problems downloading and unpacking 7zip files from elsewhere.

I downloaded Driver Pack Chipset 8.03 a couple of days ago and attempted to unpack it with 7zip and WinRAR but found it to be corrupted with many 0 byte files. Today I downloaded the other Driver Pack updates and discovered they are all likewise corrupted except for Driver Pack CPU.
Is anyone else having this problem?