Download corruption problem

hello all,

I am having an issue with getting corrupted downloads on 2 of the three computers on my home network. the computer that works is directly connected to a 3g wireless card and then using ICS the other two computers are connect threw a linksys wrt54g router (1 wireless and 1 wired, all computers are running windows 7 rc.

in the past few days my podcasts on the wired computer have been corrupted and several of my downloads. ( I downloaded itunes 8.2 about 10 different times and didn't work once, then i download it on the directly connected to 3g computer and it worked fine, moved it on a usb drive and worked.

so computer 1 is getting the downloads fine, 2 and 3 something is happening, the thing is everything has been working fine until just the past 5 days or so... what are some things I should try, i am not really sure where to start with this?

i am not sure i will look at that, thanks for the reply, was away at the cabin for the weekend, still had some issues when i tested it today, so i will look into this compression

thanks again