I reformatted today, and then updated to SP2. When I did, firefox stopped working, so I tried to dl a new copy after uninstalling. When I tried to install firefox, windows first said "The publisher could not be verified. Are you sure you want to run this software?" (I downloaded it off of mozilla's website.) Then when I made it run anyway, it failed and said "File is corrupt". I had to update to sp2 because my sound drivers wouldnt work with sp1, now I cant install anything. Is there anything I can do about it?