very slow opening email


New Email
I'm on a Mac using Entourage and when I send an email to one of my clients that is also on a mac it takes hime over 1 min for my email to open, In my salutation I have to graphics each only 59 and 54 kb in size. I test ssending toother people with graphic in and they say it opens in less than a second. I'm on Comcast. If I take the graphics out my client says it opens much faster. What could be the problem. My client says he has no trouble with othewr email from other people with graphic in them.