So it appears I am attempting to check-in online for a SQ flight departing on the 14/07 at 12h25.
As the OLCI is supposed to open 48 hours before, I tried to check-in a few minutes ago.
Result : The PNR XXXXXX is not eligible for check-in.
So I foam up SQ. Their answer : "Oh but 48 hours isn't a rule, sometimes it's 47, or 46 or whatever the system wants it to be. It's never the same so just keep on trying.
Now I know why AF/KL gets most of my business.
Edit : That's after waiting 30 mn with hold music btw.
[Edited 2006-07-12 12:44:39]