download problems

I don't know what my problem is, OR if it's my problem. In the past week I have had problems downloading from AVSIM that I never have had before.One aircraft file seemed to download >I tried 3 TIMES< alright BUT there was nothing in the aircraft folders 0 Kbs.I tried again today on a different aircraft file. The download seem to complete normally. BUT I couldn't open the compressed folder and the folder had 1.7 MB in the properties tab. I tried Winzip and it said that the archive wasn't complete and try downloading again.On an 11 MB file it takes about 55 min. to download @56K. That's an hour that was wasted to find out the file is not complete. My windows ME explorer seem ok because I can open other compressed folders ok.