Project Backup problems

I’m migrating from Cubase 6.5 to a new computer. I use Project Backup to move the 6.5 projects to an external drive. When I load a backup project back into Cubase 6.5 I get garbled results. Some tracks have high pitched static, other tracks are not synced to the proper time. I’ve used the prepare archive routine from the pool but still have the problem. Any help greatly appreciated.