hello,
can someone explain me this problem, i have a model with external pressure 0.00765bar.g or 765N/m2 but if i introduce the externel pressure in the model it can't running and it displyed error message:

FATAL ERROR 248
A file synchronization error occured reading in the data for the menus, spreadsheets, and status messages from the file SCREENx.TXT, where "x" is 1, 2, 3, or 4. Check the status of the indicated file and if necessary reinstall it. The appropriate file selected from the table below:

File Used By
SCREEN1.TXT Input operations
SCREEN2.TXT Error Checking Operations Module
SCREEN3.TXT Solution Module
SCREEN4.TXT Output Generation Operation

I didn't say what's the problem