Hi, sometimes i get a long list of errors which is out of scoll limit in the prostar output window. these errors contain the same information for a huge number of cells. usually i can only get to know a (last) part of cells that are wrong, with the first part missed. Is there a star command that can write the run informatin in a extra file (not displays in window) so that i can read all the error cells?

Yes, use OFILE,some_file_name. This will send all your output to "some_file_name". To send it back to the screen use OFILE,SCREEN.

Almost all check commands have an option (which is on by default) to put failed cells in a new cell set, so you can just look at the list of cells in a set.