Trouble-shooting mode

Hi, sorry for hogging the forums lately but one problem is being overtaken by another problem. Is there any easy procedure for problem solving as I have a game which has been reduced to a silent blank screen. I've tried checking each event but there are so many actors and events. There must be a logical sequenced method of troubleshooting.
PS Why is the saving, loading etc. destination method so confusing, why can't it be in line with other windows software? For me to find a file is a headache. Sorry for being myself a headache to everybody.
PS Why is the saving, loading etc. destination method so confusing, why can't it be in line with other windows software? For me to find a file is a headache. Sorry for being myself a headache to everybody.