Are you getting this in the black start-up screen or from Windows? Before or after log on?

Does it allow you to boot into Windows normally?

YES  its in the black screen before , then it does a IDE check then it says hit f1 or f2  ? all the time and date have all to be corrected cos it goes back to 2002

This is what actuly happens,   

 When i hit the start button a black screen comes up and it say's

 "INVALID CONFIGURATION - PLEASE RUN SETUP PROGRAM"

then under that it say's "

PERFORMING AUTOMATIC IDE  CONFIGURATION"

Can anybody tell me how to run the setup program and will this cure it ?

Update the date / time in the BIOS and then replace your CMOS battery.  That should cure it.

i just changed the battery this morning and it's working ok now but thanks anyway.