Keith Wansbrough wrote: > This is not a bug, it's a Feature[TM]! Notice the prompt says "Stacks>". Minutes after I sent you my message I noticed that and I supposed your answer was going to be that :-) > which I think is what you wanted. Exactly. Again, thank you very much. -- Angel Herranz-Nieva (FI-UPM) pho: +34 913367452 mailto:aherranz@fi.upm.es http://lml.ls.fi.upm.es/~angel