Have you ever been able the download window, Alexandre? In other words, is
this a sudden, new problem or an ongoing one?
If the download is in PDF format, try upgrading to Adobe Acrobat (Reader)
6.1:
http://www.adobe.com/products/acrobat/readstep2.html
Otherwise:
1. Troubleshooting Secure Sites
http://support.microsoft.com/?kbid=813444
http://www.mvps.org/inetexplorer/answers2.htm#secure_sites
Page cannot be displayed errors
http://www.mvps.org/inetexplorer/answers.htm#dns
2. Make absolutely certain each machine is fully up-to-date at Windows
Update
(and with virus definitions) and that the 5.6 Scripting Engine has been
reinstalled:
http://msdn.microsoft.com/library/default.asp?url=/downloads/list/webdev.asp.
If WinXP, look into the Java vs. Java VM situation ("Breaking up is so very
hard to do."):
http://www.mvps.org/inetexplorer/answers_9.htm
3. Check your system for "hijackware":
Dealing with Hijackware
http://mvps.org/winhelp2002/unwanted.htm
http://www.mvps.org/inetexplorer/Darnit.htm#tshoot
http://aumha.org/a/parasite.htm
CoolWebSearch Chronicles
http://www.merijn.org/cwschronicles.html
You *must* seek updates for Ad-Aware, Spybot, etc., before each and every
use, even "right out of the box". But even then, they can't catch
everything. When all else fails, HijackThis
(
http://www.merijn.org/files/hijackthis.zip) is the preferred tool to use.
It will help you to both identify and remove any hijackware/spyware. **Post
your files to
http://forums.spywareinfo.com/ or the Spyware forum at
http://forum.aumha.org/ for expert analysis, not here.**
4. Update your virus definitions and then run a full system scan. From now
on, do both daily.