Ach so, also daneben!
Hmm...es könnte beim Laptop auch mit dem IRQ-Sharing zu tun haben, also daß z.B. die Firewire-Schnittstelle und der USB-Controller den gleichen IRQ zugewiesen sind, dazu folgendes:
"To find out whether or not your computer has IRQ sharing in Windows 2000/XP, perform the following steps:
-Click on the "Start" button and select "Settings>" and then "Control Panel" from the list.
-Double-click the "System" icon and click the "Hardware" tab at the top.
-Click on the "Device Manager" button.
-Click on the "View" menu at the top of the screen and choose "Devices by type" from the list.
-Click on the + next to "Interrupt request (IRQ)" and locate your USB Universal Host controller chip. Note the IRQ number to the left.
-Compare what you see to the above diagram, and note any other devices that share this IRQ.
If you believe you are experiencing this problem and are on a laptop PC, the best solution is to use a different computer as an audio workstation; one that does not have IRQ sharing. If you're on a laptop or desktop PC, you may purchase a PCMCIA or PCI card, which will, on some computers, use a different IRQ and thus provide a different path for your recorded signal. On occasion, certain motherboards and manufacturers can be contacted for information about IRQ Steering and reserving an IRQ for your USB, FireWire, or PCI card.
Also note that in some cases the solution to IRQ Sharing (other than using a different computer) may be only achieved through disabling other devices on the system, which will reduce the total number of IRQs in use. Even if you do not use a device, it will use an IRQ until it is disabled."
Also, versuch mal herausfinden, wie die IRQ´s jeweils im Gerätemanager zugewiesen sind und deaktiviere auch notfalls (zum Testen) das eine oder andere Gerät (welches den gleichen IRQ hat),
Grüsse
Hatsch