A little background first:
On our site, people can register and then download various free trainings (zipped) and handouts (pdfs), which are several meg each (up to about 15 meg). When they click on one of the downloads, a registration page pops up. They fill in name, company, and email address, then choose from a drop down menu. The program asks them to save or open. As soon as they decide, we receive an email notifying us. Note: Once they have filled in the registration info, the window stays open and they can keep on downloading other programs.
Now, the problem:
From the emails we receive, we see that many people have to redownload the first program or handout they choose. For some reason, it downloads (say around 700K) and then stops like it's finished, even though the program could be, for example, 15 meg. Of course, they think it's done and may or may not continue downloading others (which completely download); then when they go to open the first one they downloaded they get an error message saying something about the file being incomplete or corrupt.
So far as we can tell there is no pattern, different Internet systems, different first downloads, no way to ask people what type of protection they use for Internet without them wondering what kind of site we're running. One of our people suggested a tiny interruption in Internet service or a power surge, but it's almost always on a first download.
Has anyone ever had any problems with people downloading from their website? Is their any solution?