Besides the PDF save-to-disc problem in Safari as pointed out by early users, I found another bug with Safari --- the download window will not appear as I click a link to a file (say a .dmg file). The downloading function worked fine when I installed Lion. I am not exactly sure when it was messed up. Could it be related to Speed Download? I have tried to disable the Safari integration function in Speed Download but nothing happened. BTW, the contextual menu for Speed Download does not show up in Lion.