fine here.
winxp service pack 2
ie 6
high speed connection
people saying they cant see can be a few different things
could be that the image server was down
could be that theyre on slow connection and image file size is too large for them to get image before their browser gives up
could be that they need to clear cache and reboot
could be that theyre using an ISP that is having problems (such as DNS issues, trying to serve from ISP's cache and cache is bad, etc)