I really need help with that. My hardware is getting old and soon it will not properly support gnome anymore. Unfortunately, I have a vision impairment and the gnome accessibility zoom is something that I cannot exchange with anything else. I know that the X window system already has its own zoom feature but its not good as the gnome one. If I log in with a environment such as lxde and activate gnome accessibility at startup, it will not run. Do someone know what I should do to make it work?