Hello, I'm a bit frustrated with this Mini. Every time it goes to sleep for a while, then I wake it up, everything that I had on the desktop before, such as browser up, ichat on, and a program opened all is gone. I had to re-open the browser (re-sign in on Facebook, etc), ichat and other program(s). I thought it was the older version of OS Leopard that caused it so I upgraded it to Snow Leopard but the problem remains the same afterwards. How do I fix this? Mini is late 2007 Intel Core 2 Duo 1.83 GHz with 2GB RAM. Thank you very much.