HELP Problem with Website, don't know what to do

Question

I worked on a clients website a while back taking the frame
borders off of her tables in her pages. Now she is saying that alot
of her clients can't open up the site on their browsers. I did this
changing of the borders in CS3. I have Firefox, Internet Explorer,
Opera, Safari on Imac, I opened the pages on a PC and that worked,
and two other Mac computers. This client is saying she is going to
sue my boss.
I did this work with her sitting right next to me, did I do
something wrong or miss something, or how do I prove that I did
what I was asked and the problems did not arise from that work.
The site is elizabethtimanifauxart.com
Please help.
Thank you,

Answer 1

I think it could be s DNS problem. Did she change her hosting
cie if so then it is a DNS problem.
Try and do this
1: Get the right error message just saying "that alot of her
clients can't open up the site on their browsers" is not enough
2: start a command line and type
nslookup www.elizabethtimanifauxart.com and mark the adress
of the web site then repeat this step at the faulty customer to see
if they get the same adress if not then there it is.
3: If it is the same try emptying the cache on theses browser
But I agreed with all the post it need more troubleshooting.
PS and Yes it happens a lot that DNS are up updated
adequatly. I have seen it many times.
Frenchy ASP