Whenever I use Safari I keep getting logged out. Happens fairly recently.

Steps to reproduce:
1. Open Safari, log into VideoSift.
2. Quit out of Safari (don't just close browser)
3. Reopen Safari, log into VideoSift.
4. Wait for you to be logged out.

OS: OSX Leopard

My old fix used to be to empty my cookies. Now that doesn't seem to work anymore.