OMG ! Welcome to the forum, I hope. My 1st post/comments. I hope I don't fuel the (usb) fire any more, but here goes. Has anyone else had an install problem with 98 SE SP 3.x, when your system has both a USB keyboard & mouse ? Mine is: Viewsonic KBM-KU-306 & MS Comfort Optical Mouse 3000 MB=Asus A7N8X - nVidia nForce2 controllers - AMD Anthalon 1300 CPU - 512 Mb Ram Did a fresh clean install Win 98 SE. Installed all necessary drivers to eliminate any unknown devices in the System /Device Manager section, including (nVidia ?) usb20_98me.exe Ver 2.0.8 (that removed a PCI Universal Serial Bus-unknown ? device) Installed IE 5.5 & Dirextx 9.0c. Did a MS Backup of my C: drive All worked fine to this point Now I installed SP 3.6 main updates only. When install was finished, I shut down. Then I would reboot to Safe Mode, to remove any and all USB stuff in the device manager. (As to your usb 2.0 notice/instructions) KB & Mouse had to remain attached or PC won't boot up. Hope that was correct procedure to follow. Upon S/D & Reboot: detection of Standard Open HCI Usb Host Controller started. Was seeking files usb.inf & then Sp3.cab. When finished installing software your hardware requires dialog message popped up, both the mouse & keyboard locked up/no response. SD & reboot again to add new H.W. wizard window looking to install Standard Open HCI Usb Host Controller again, and again no response from mouse or KB. This continues to reoccur on every reboot, No KB or mouse. Tried at least 6 times with no success. Booted to safe mode to restore my previously backed up system (replace all files & restore Registry & H.W. settings) Interesting note after System restore is all my Usb storage devices were recognized and usable. About 6 different ones. Could do fast removal also. PROBLEMCHYLD: This is not a complaint or gripe, just a report, and if I did something stupid/didn't read something, I apologize for wasting your time. I've been following this and many other topics in the 98 area for quite a few years and appreciate all the hard work & time you skilled folks put into these projects & improvements. If you would like anymore info, I'll do my best to respond, as soon as I figure out how to reply to a specific post. Thanks for listening & I hope this goes where it's supposed to. (PS: There are a lot of rookies, newbies, P.-Time Hackers, guests etc., out there lookin' at this GREAT STUFF) ReK