Unable to run parametric program

[PEERPSI]

I'm attempting to run a parametric program used on an older A600 system. The program executes to a certain block and then just stops. The number of lines versus lines in the program starts to increase rapidly and the program window shows no text with just a yellow bar.

I've stripped out the parts that the program should run based on what the parameters are and when I just run that part in a seperate program it runs fine.

Any ideas?

[PEERPSI]

Solved this tonight. My var.dat file had a number of undefined entries represented by #0. I went through the list of vars, 500-599, that we use in the program and set those without values or those that represent a logical 1 versus 0 to defined 0 values. This means that their entries in the var.dat file are now represented by a 0 instead of a #0.