setting the timeline bar over two sequences

[Matthew Max]

I have two sequences in my project in CS.5.5.
I cut off several minutes of the last part of Sequence 2.
When I go back to work on Sequence 1, I see Sequence 2 with the deleted portion in a hashed view, so to speak.
The timeline bar (or whatever you call that bar directly above the tracks) extends to the end of that hashed portion of Sequence 2.
I'm having a lot of trouble understanding the bar as I go between sequences.
Help!
And if I delete the hashed portion of Sequence 2 while viewing it in Sequence 1, does that change anything besides making me feel better?
I can't make this timeline bar hold still. It's everywhere. Keeps changing--short, really short, long, too long.

MY BIGGEST QUESTION is how the heck do you read this bar and make it behave? I am a troubled soul.

sequences.png

Let's see who's gonna get a big sloppy kiss on the top of their pate for answering this one.

[Peru]

If sequence 2 is nested into sequence 1, the hashed part shows the fact that sequence 2 was once that length and was made shorter. By deleting the hashed part, you are updating sequence 1 with the new length of sequence 2.