My PC has taken to asking me to re-install a monitor file 'DTNF93K.icm'. Am I right in assuming this is somthing connected with colour temperature? The file is already resident on the hard drive but presumable corrupted.

Any thoughts?

Just a stab in the dark here, but maybe it's the "Diamondtron Tube Natural Flat 9300k" profile?

I'll reload the profile files again Doug. Its absence doesnt seem to cause any problems just want to kill the annoying request field.