I have a fairly new laptop with 4xUSB2 ports. I have added two more USB (1.1) ports via the PC card slot. Everything works fine.
However when I plug a new Belkin USB2 port into one of the laptop's USB2 ports only my external hard disk and floppy drive work.
The Hp 840C inkjet only prints part of a (colour) page - but black ink printing is OK. The wire-less mouse/external keyboard won't work, the Mocrotek scanner is 'not found', and the broadband connection won't log on.
I've tried another Belkin USB2 hub with similar results. Both hubs are mains-powered.
I have 9 USB devices altogether so I have to plug the floppy drive, camera card reader, videocam and 35 mm scanner in when required required into the 6th. port.
Any ideas anyone why I can't use USB2 hubs on my laptop ?