There is no requirement to join EventID.net unless you want their advanced services. You put the # e.g. 1002 in the ID box then the source e.g. Dhcp
http://www.eventid.net/display.asp?e...02&source=dhcp
Some network error occurred there.
http://www.eventid.net/display.asp?e...System&phase=1
System Error=1003= some driver depending on the details of the error which should be in the Event Viewer under Details > Double click the Error line and read the description therein.
Server=2505= another Network error:
http://www.eventid.net/display.asp?e...Server&phase=1
IdeChnDr=9 = an IDE controller error/ hardware/ drives:
http://www.eventid.net/display.asp?e...eChnDr&phase=1
Cdrom=11 = CD drive error possibly connected to the above IDE error:
http://www.eventid.net/display.asp?e...=CdRom&phase=1
Check your cables and your DMA/PIO settings as seen here:
http://support.microsoft.com/kb/310751
All that being said if this is a new problem try a System Restore to a point prior to the problem:
start > All Programs > Accessories > System Tools > System Restore
.