the envelopes are not hidden...simply gone...playback verified that...
 
if I have a project open and save it then I open the project again and continue where I left off...
 
I get the point about save as...but ive never had a problem like this happen while in the middle of working on a project...its not like I closed the project and opened it and they were gone...I just left the room to do some other things and came back and my envelopes were gone...
 
I don't have a cat or a child who could have done this...so im beyond stupefied...
 
im running win 7 pro 64 bit...and as far as Ive been told by tech supp they haven't tested the newest version on win 7 so im not going there...but thanks for the advice...
 
I spent the last two days just re-doing the pans and gains...so far the same problem hasn't occurred to imam just keep my fingers crossed...
 
woofwoof!

+ 1 for "save as" + wip version number

I do save as in every program I use. Not only sonar. The "work in progress, wip, numbering method has been very safe method for me for many many years...

filename_wip_01
filename_wip_02
filename_wip_03
Etc etc...

This way, I know the highest number is the latest one, when I do major changes in the project, I save as new wip number and if I need to open an older work in progress version to check something, its easy done... And when Im done with a song, I use to delete all previous wips and clear the wip number from the filename or I sometimes leave them there, they barely take diskspace...

Good luck