I have Freespace 2 from GOG.com and I have FSO. I am doing the missions in theh FS2 campain right now and there are some weird spherical green grid like things that look like small planets. I was wondering what those were and how I can fix this problem if it is truly a problem. Thanks

I think you are describing intersystem jump nodes. Those are supposed to be there, the indicate the region you must be in to activate an intersystem jump as opposed to the normal intrasystem jump which can be activated anywhere.