Its most likely your browser. If you are using a non-IE browser, try reinstalling it. If you are using any of the beta's of something (IE Firefox) then it could be a beta bug.
EDIT:Unless its the same file that you are trying to download. Then its likely to be the file.
Intel Q6600 2.4Ghz SLACR
eVGA 8800GT 512mb Video Card
4GB DDR2-800Mhz RAM
Thermalright Ultra Extreme 120 with Scythe SFlex Fan
160GB Seagate Barracuda 7200.9
500GB Seagate Barracuda 7200.11
22" Viewsonic Widescreen Monitor
3DMark06 Score: 11402