Thank thee, there are v4.27 drivers, while I used v4.20 ones before. Just ATI graphics and Aureal sound card. I already re-installed Windows from scratch since I had had this problem for the first time. Yes. Thanks again, I did not have the manual. The manual means, that on the CD-ROM (which I do not have) were USB2.0 drivers. But the nforce drivers above do not include USB, and at asus.com/K8N there neither are USB drivers for Win4. When I activate legacy support for USB in the BIOS, stick in the 8GB flash disk and boot into DOS (F8 - "boot into command prompt"), the disk is D:, and I can copy files from/to it. (Now fast, since I found that "hispeed" is faster than "fullspeed"). When I now type "win" <enter>, windows starts loading. But the legacy USB code gets in the way, and Windows quits by saying "explorer.exe found error, please reinstall windows". (I use a german Windows, so I must re-translate messages.) When I let the computer boot into Windows right away, then no crashes but just non-functional hubs. It does not cause crashes but it does not work. But it works on other mainboards. Somehow the K8N mainboard lets any USB hub in Windows 98 SE fail. I also deactivated legacy support in the BIOS, to no avail. But Windows XP has no problems --USB-wise or other-- with this mainboard. The controller is the server, and the first hub is the slave, a logical device which provides a bus. A USB bus can run six devices in parallel, hence it has so many jacks. Plugging in another hub, another six devices can become connected to the same controller. As devices differ in many ways from another, each device needs a driver. Windows 98 SE on the K8N installs any controllers fine, they have no yellow exclamations or red crosses. But any hub gets the error. I apprechiate, how thou are helping people.