Yeah, it has been tricky but I managed to find a solution.
Open the project with ”notepad”, use the option find&replace to change the directory of the files.
Ex.: C:/ to I:/
Also, another problem, this may sound stupid but I happened to understand it and know it only when i faced the problem. Don’t edit HD via USB 2.0, it has a flow of 20mb/s and when you have a very big project, it’s two much to handle. USB also use some CPU power and it’s no good. Firewire400 or 800 works fine and eSATA is best.
USB will work (maybe) but it’ll be slow, so i recommend those Lacie HDD without a firewire or eSATA input to be used only as backup drives, and even that, it’ll still be really slow when transfering large files.