STL Droid,
Thank you for your recommendations. I was going to look for utility apps, especially a task killer, but decided to read your post first, and voila! You told me what I wanted to know, and asked some very good questions as well.
I got my PE last week but have not gotten as far with it as you have with yours. I, too, had to do a reboot soon after startup, but for me it was the LCD that locked up. No problems since.