i reproduced with only one file open, and here are the answers to the questions :
How many files are you saving at a time? 1 file
How many files do you have open? 1 file
How long does it take to save just one file? about a minute
How long does it take to save the same file using Notepad? nothing
Is a network drive involved at all? no
How long does it take to open a file? nothing
How long does it take to save when there are no modified files to save? nothing
I tried to reboot, reinstall and remove all the personal settings from my-documents. Nothing of these things helped.
Thanks,
Yoav.