Hi pdftex team, I have encountered the problem with the stack_size parameter. Enlarging a complex context document results in the error ! TeX capacity exceeded, sorry [parameter stack size=6000]. Since a compilation of individual document parts is OK I do not believe in the recurse problem. Interesting is that texmf.cnf sets (TL 07): stack_size = 5000 stack_size.context = 10000 so I was curious why pdftex (tested on 1.40.5 and the current 1.40.8) is writting about 6000. It seems to me it simply cuts down the number greater then 6000. - Is the 6000 a real limit? - If so then context setting to 10000 is useless. - If not can it be increased a bit? Let us say to 10000? Thanks Vit Zyka