acceleration file

[vivayo31]

hello,

i have some problems doing a dynamic analysis of a cantilever column in 3D. i don't know why the program can't read the file which contains the acceleration input, it has at2 extension.
I tried to change the file but i always have the same message 'Cannot open ../GMfiles/H-E12140-x.at2 for reading'.
I think it could be a problem with the data.
Can someone help me??
Thank you

[fmk]

it's not the file contents .. it's the file location relative to your current location in he scripts (use pwd to see where you are) or the file name (if you are on linux the name is case sensitve)