Why can I open some *.mcd files while I get the error message "Failed to open document" for others?

Hassan Muhieddine wrote: Hello everbody, I have a set of file I am trying to open with Mathcad 15 M030. Some files are opened succesfully while I recieve the abovementioned error for others. I find it really strange and wonder if anyone else have encountered similar problem before or if someone can suggest a soultion to this problem. Thanks in advance! /Hassan

See response to your other question on this matter.  

Stuart

PS: It's usually better to use only one thread to deal with a given topic, otherwise it tends to get confusing to both the poster and any responders (and occasionally some people can get quite rude about it)!