I guess I'm a little lost here ...

so I am currently trying to get the CP/M version of #F83 #Forth by #Laxen and #Perry to do what I want.

The problem is that I can use BLOCK, UPDATE and SAVE-BUFFERS and any new data written to a block is preserved for the current session. But as soon as I quit Forth and call it up again, using the block file I've just modified, the changes are gone as if they have never been written to disk.

Any ideas?!

@Wintermute_BBS This is on what CP/M system and what hardware? SAVE-BUFFERS should force the block file to be written… You can see how by VIEWing its source code. I believe it does appropriate BDOS calls.
@honuk it's on a #rc2014 with #RomWBW firmware and ZSYSTEM 3 running from CF card.
@Wintermute_BBS I have a similar system at hand, will try later…
@honuk that is very kind of you. I'm also having another idea where too look, will report when I have checked.