Hi,
I did some very huge and complex patches in the past with lots of [switch~]es (no [block~] though) and I used -nogui regularly, and never came across any problem.
I guess this is not enough to completely discard [switch~] as the source of the problem but it does give a clue that the problem is probably somewhere else...
I had no gop-enabled abstraction or subpatch however in those patches I used with -nogui....
Matteo Sisti Sette matteosistisette@gmail.com http://www.matteosistisette.com