Hi all! I have a small problem. I have a USB 2.0 PCI Host Card that has a yellow exclamation mark on it. When I go to system>device mgr and then click on that particular one and update driver, it tells me that the best driver windows found is already installed. Then I click "ok" to get out and a window pops up telling me that ... >>"The file OUSB2hub.sys" was not found. Windows needs the disk labeled "EHCI Driver Installation Disk" to continue.<< Can someone please tell me what that is all about? I just recently lost all my sound (even after updating driver) and all my USB controllers had the yellow exclamation marks. So, I was told to reinstall windows and everything got fixed but the above mentioned one. I would appreciate any advice as to what to do. Please explain as simply as possible. Thank you to anyone that replies... --Viv :)

I would go back into Device manager and right click the problem USB hub and choose remove. Or uninstall. Whichever option it gives you. Then reboot your computer and let windows pick it back up and reinstall the drivers for you. If it truly is missing the file from the HDD it will prompt you for the driver disk that came with your computer. The driver for the device is either on the Motherboard drivers CD or on the CD that came with the USB card. Hope this helps.

Thanks Dave02! I will try it and see what happens. Really appreciate the reply... --Viv :)