On some websites that I go to there are blank spaces with a red x in upper left corner. Please, tell me what this means. 
Can you supply a web address so we can see for ourselves?
Sounds like there’s a java applet that’s not loading; do you have the latest sun java virtual machine loaded?
It could also be a picture that didn’t load due to a bad link or unsupported format. It’s basically a place holder telling you “Hey, the coding says something should be displayed here but I can’t load it for some reason”.
Right click over the blank space then select “show picture” from the menu, that sometimes works 
Thanks for the replies to the post,just went and downed jav at sun site, will see if that is the answer.