Protools Le, All FIles Failed Options

[pace studios]

Help!!
Please can anyone give me the advice on the following;

I have a Power Mac G4 with OSX software with Pro Tools LE 6.4 and MBox.
The computer has been operating very slow so I cleared the trash.
Carried on working in Pro Tools, went to save the file and it came up as 'save as' even though the file already had a name. I saved it in one of the 3 folders that I save everything. As soon as I saved it it came up as 'pro tools has unexpectedly quit'
I then looked for the files in the folders and ALL Pro Tools files (current and previous) has gone.
Now when go through the harddrive to try and find these files it comes up with 'original folders can not be found'

I looked in the log book and this is what it says
'23.26 local/host/applictions/digidesign/protools/protoolsle6.4:usingFIXEDploicy

Please Help as I am desperate and spent all day recording tracks which I have now lost!

[ourmanflinty]

Norton has an unerase function, either the OS9 or OSX version, Your G4 may boot into OS9 as well. This will be able to find a lot of erased files as usually just the pointer to the file is deleted, like an index in a book, thus making the drive space appear free, so a program can scan the whole drive and look for files which are not in the 'index'...but if you didn't name the audio track before recording you're going to be sifting through a whole bunch of files with similar names, also for edits, you'll have a whole bunch of segments. It could take days and you'll have to buy norton or use a friends. Also if you've been putting more files onto the disk then you may well be recording over 'erased' files...You may have to bite the bullet and re-do them all...The icon in the dock stays there even if the program has gone, it may have a ? in it...?