DEC OS/8 Question (getting an error TOO BIG INIT)

Hi, I am sure this question has come up before, but can anyone advise an OS/8 change I can run to avoid the following issue (below)? I am unsure if I need to fix my simh INI file or make more space for the program from the OS/8 dot prompt, or FORTRAN * prompt. Running pidp-8i (simh PDP 8i kit) I load OS/8 and initiate the command from the dot prompt: . FRTS ..dumps me to the * prompt ... *RKB0:ADVENT.LD [return] * [esc] rather than loading ADVENTURE I get the following result: D.F. TOO BIG INIT 0000 MAIN 1740 . (..andkicks me back to the dot prompt). the INI is the default reset set cpu 32k set cpu noidle att rk0 ../imagefiles/os8/advent.rk05 boot rk0 what changes are needed? I searched around, I don't quite understand how to load an LD file in OS/8 to debug the error. It may be I have the wrong RK05 disk, but I'd really like to understand what this error means if anyone knows. My physical RK05 disk loads ADVENT as an SV file, I don't need the extra steps. Thanks BIll