[Hellfighter]

There are 3 things that dose this.
1.) Host of that Picture is down, if the webmaster is updating it making changes site will not be seen till after he's finsh with it.
2.) Geocities and some others have a block on it so other don't leech on the files this stop all from seeing Picture (sig, wallpaper, avatar's. zip. ECT).
3.) The host site is down do to bandwidth is over run so close down for temp. This is normal, dose happen to all limited paid service or freebie sites sample geocities have a limited on it and other do to but most of the time the site come backup after 1-3hrs.