PPr CS5 - Weird Stuff Happening!

Hello! I haven't been editing with PPr very long, and suddenly, some weird stuff is going on.

1. When I create a new project, the sequence I created shows up in the timeline, along with SEVEN other sequences, all named "Timeline (no sequence)" Of course, I can delete them, but that's kind of a pain.

2. Page up and Page Down does not take me to the beginning and end of an edit point. I went to Edit > Keyboard Customization, and it is clearly mapped to do so. I remapped the keyboard, and the new keyboard shortcuts work fine, but ... whaaaa????

Can anyone help me? Thank you.

-Lori Savitch

RE: multiple sequences on the timeline: I just did an update this morning. It happened before the update, and after the update.

RE: page up and page down - the tracks WERE selected. And when I re-mapped the keyboard, it worked fine with the new shortcuts. So I guess I should just shut up and keep editing!! Meantime, I checked my job-share partner's computer. Same thing. (She also did an update this morning, but she says she doesn't know if it worked before the update or not.

Thank you Vince. It would be great to, at least, get to the bottom of the multiple timeline issue. I am grateful for your help.

-Lori