Sharepoint problems…

Hi, I reached
http://builder.com.com/5100-6315-1049783.html
because in same win 98 clients sometimes I can’t post an announcment because de Body part of it seems not to work !?!? I just can’t type anything. Only in some 98 clients. So I suppose is some problem with the client. Do yoou know I the body part is implemented (to figure out what ir can be.
Thanks!