Dear All! We created RIS server about 6 months ago and it was working fine and saved a lot of time. But today I got error The user name could not be found. An error ocured on the server. Please notify your Administrator. I looked in events log on RIS server and found this Event Type: Error Event Source: BINLSVC Event Category: None Event ID: 1042 Date: 1/9/2007 Time: 12:25:23 PM User: N/A Computer: XYZ02 Description: An error was generated by OS Chooser. The error code is in the record data. User: XXX Domain: XYZ.Local Computer Name: mypc For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: ad 08 00 00 ¬... Since last time I used RIS nothing was changed in server configuration. Server is Win2k3 Ent So far I found only http://www.eventid.net/display.asp?eventid=1042&eventno=2488&source=BINLSVC&phase=1 but nothing good for me I have to roll out soon bunch of PC's, so any ideas, thoughts, hints will be really appreciated!