A few days ago I opened up a song I was working on and there were no visible soundbites in the sequence editor.
The song played and I could mute and solo tracks but no waveforms.
I'm running the program on a Mac G4 533Dual with an 828 sound card.
It's been running smoothly up until a few days ago.
A guy I know that works on PCs and unfamiliar with DP told me to uninstall Dp4.5 and reinstall it.
I'm hoping I don't have to do that.
Thank you very much in advance to anyone that will help me.

In the right part of the upper bar: Configuration > Display filter (or sthing like this, my version is french) > Rectified waveforms: OFF. It works...
Cheers

I was very excited by your post then I went into preferences and the rectify waveforms was already off.
I haven't been able to work on any of my songs for the past several days.
Do you or does anyone have an answer to this problem?
HELP!!!!! PLEASE!!!!!

I found it!
Setup/View Filter/Set All.
voila!

In fact it was the words I was needing:

set view : configuration
view filter : filtre d'afichage global
cocher soudbites (ou tout) : set all...

Ufortunately the handbooks in english brought no help, I could not find what I wanted....
Well, everyting is all right now !!