So; having got a generic USB 2.0 PCI card recognised in my Back-to-the-Future G3 Mac I have started having a lot of 'fun' with it: 1. It works very well with my faithful Belkin Nostromo. 2. When I plug 2 external USB 2 hard-drives into it they are not recognised AND nor is the Nostromo. Queer or what?