I recently upgraded to Giga 3.0 Orchestra from 2.5. I also but a new computer and I am having trouble opening old .gsp files. I was told that the path for instruments has to be exactly the same as when the file was created in order to open .gsp files, however, the drive letters are now different on my new machine and I would prefer not having to change them. Also, even when I did experiment with changing them I still had difficulty opening .gsp files.
I desperately need those .gsp files! I have been opening them as raw text files in an attempt to reconstruct them, but this is VERY cumbersome and time consuming. Can anyone suggest a solution that I may not be aware of?