Free version of Dalewj's second book (Diaries of Afterworld) is now available!
Have you tried the suggestions listed at https://my.afterworld.deelogic.net/survival/tech-forum/stuck-in-blue-sky/msg11808/#msg11808?Does the second computer have the same video card, video driver, DirectX version, processor, and RAM? If not the problem is almost certainly your account being stuck. Try some of Jane's suggestions for finding the door (if you haven't already), but if that doesn't work you'll have to submit a Helpdesk Ticket at https://my.afterworld.deelogic.net/survival/index.php?action=helpdesk;sa=main (use the POST NEW TICKET button).