I'm not sure this will be of much help M1900...........but........
I have exactly the same machine as you, even built same year, and I have this week fitted 2 x 256MB cards into the spare slots giving 640MB.
The cards came from crucial and are :-
256MB 168-PIN DIMM 32x64 SDRAM UNBUFF PC100 LOW PROFILE
CT32M64S4D8E.16LTG
(That's taken straight off the celophane card cover)
All I did was click them in, started up and followed the on-screen wizard instructions. No probs.
Not much help to you I know, but at least you know it is poss.
The missing file you quoted is not on my machine either !!
moley.
Last edited by moleslayer; 30th December 2005 at 09:41.