Broken Graphic Links

I have recently upgraded our server to R6.5. Everything seems fine except that I get a lot of broken graphic links on our web site (195.224.35.172) when using IE5.5 on Win98. I do not get these problems accessing the same database on our R5.9 server (80.68.43.87). Sorry about IP addresses, moving domains to new server.

I have searched everywhere for a solution/explanation but I can not find anything. Is anybody else having the same problem? If I open up a page I often get broken links. If I refresh then the missing graphics appear but all the rest disappear. If I hit BACK then FORWARD on the browser, no problems. Sure it can’t be code as the two databases on the two different servers are replicas, but only seem to have problems since upgrading, and using Win98 with IE5.5

Any help would be gratefully received.