What do white lines on my audio clips mean.

On some of my projects I noticed white lines on the top and bottom of the audio clips. I can't find anything about them in the documentation. Does someone know what they are, or what they mean?

Or it may be that they're linked clips, i.e., under Options > Drag and Drop Options "Copy Entire Clips as Linked Clips" is checked.

White lines in the audio clips probably means the audio clips are having a real good time. :-)

Who's taking bets on what the lines are? I'm with ampfixer - signals are clipped. But all are good suggestions...I was going to say transients? But those would be "a lot of lines.." or not.

Why do people waste our collective time by asking questions and never coming back? It would be nice if the reference manual was up-to-date, then we could just list a page number.

Use Alt Prt screen and paste into Paint,
or if you use dropbox or One drive it will save the screen shot. 
 
Upload the picture to Imgur. 
Copy the ULR and paste into the form picture tool. 
 
Without a picture how can we help? I have all sort of vriations on white lines and whatnot. Like if I make a groove clip a white bar shows at the top.. There seems to be white lines between too. 

I had a chance to do some testing this evening, and the white horizontal lines were at the top and bottom of the selected audio clip.  The lines extend the full length of the clip.  On some clips the bottom line has a 45 degree angle at each end, and the angled ends do not appear to be related to groove clip looping.  I checked in preferences->colors and I could not find anything. 
Here's the image.  The clip on the right is selected.
 This one does not have the 45 degree angle on the bottom white line.  The angled white lines on the bottom white lines are not related to the clip falling on a beat boundary.
 

OOPS!. Spoke too soon. I have no idea what I'm seeing in that picture. I've never seen my display look like that. Hopefully one of the mystics around here will get you an answer.
 

Yup, Millzy's figured it out. In Windows-speak it's known as a "focus rectangle", although SONAR only does half the rectangle so it doesn't get in the way of other graphics at the ends of clips. It's simply a way to visually indicate that a clip is selected, made more noticeable in bluegrasser's picture because there are a bunch of small clips selected. Drag a selection box around any number of clips and you'll see those lines.