r.thin input/output error

her it seems to be working fine. I thinned the whole
file. Have you tried it with new 4.1 release?
Olga

No. I used the 4.0 version. 4.1 will be installed here pretty soon, but
could you find out for me if the file can be thinned in your 4.0? That
would mean the problem is something else (memory?).

Martijn