If the VS-2400CD loads directly to the "Setup Drive" window and will not load any projects, the hard drive may be fragmented.
First try turning off the VS-2400CD and then back on again a few times. If the projects eventually load, immediately backup and then format the fragmented drive:
https://www.rolandus.com/support/knowledge_base/201979369
If the projects still do not load, there are two options:
https://www.rolandus.com/support/knowledge_base/201969799
If the problem continues, the hard drive may need to be replaced:
https://www.rolandus.com/support/knowledge_base/201975749
Note that due safety and liability reasons and the age of the product, we don't have instructions regarding how to replace a hard drive or where to purchase a new one.
If the issue still continues, it sounds like the VS-2480 will need service unfortunately:
https://www.roland.com/us/support/service_repair/