I'm having the same problem. I had to install Windows on my MacBook Pro just to download what I need too. It works fine on the Windows side, but not the Mac side, and I'm just confused by this, because it's been working fine for a year now, and all of a sudden it won't return any search results. Any help would be greatly appreciated.

MacBook Pro 15"
1GB RAM
Max OS X 10.4.8 (Up to date)
Win XP Pro SP2