EUROCOM 8880 Dream Machine User Manual page 200

•Display Choice: Press Fn + F6 to make sure the system is not set
to "external only" display ( see Chapter
3:"Attaching a Monitor (CRT)" on page 3-8 ).
•Boot Drive: Make sure there are no floppy disks in the drive
when you start up your machine (this is a com-
mon cause of the message " Invalid system disk -
Replace the disk, and then press any key ").
Troubleshooting
Basic Hints and Tips 8 - 3
8