Thanks, Simon. I dropped your file on my site at http://www.planoweather.com/wxspace-test.php and it does the same thing. Your file does show version 1.6. Did any of the underlying php files change with that version? i.e. image-space-solar-disk.php.
/*
# sometimes an error code can be printed in the image
# possible errors that could show up in the image are:
Error 000: Forbidden characters in $localimgName only letters, numbers, dash, underscore, and dots allowed
Error 001: Forbidden characters in $outputimgName only letters, numbers, dash, underscore, and dots allowed
Error 002: $localimgName file type not gif, jpg, or png. This script only supports .jpg .gif and .png
Error 003: Download error: cannot write to file, check server permission settings
Error 004: Download error: reading or opening file, check availability of $ImageURL
Error 005: Error loading image
Error 006: Missing downloaded temp file
Error 007: Convert_download: file not gif, jpg, or png. This script only supports .jpg .gif and .png
Error 008: Missing cache file
Error 009: Missing downloaded file
Error 010: Copy cache image failed
Error 011: Convert_download: touch image last modified time failed
Error 012: Chmod 0644 image failed
Error 015: Wrong settings: $localimgName and $outputimgName must have same extension IE: .jpg .gif or .png
Error 016: $outputimgName file type not gif, jpg, or png. This script only supports .jpg .gif and .png
Error 017: $localimgName and $outputimgName cannot be named the same
Error 018: fetching timestamp failed for URL (remote_image) 404 not found?
Error 019: could not connect to remote image
Error 020: $ImageURL must start with http
*/