More and more users are using Chrome, less and less are IE and Firefox...

http://gigaom.com/collaboration/chrome-breaks-20-percent-global-browser-market-share/

If you're doing this seriously, and it looks like you are, I'd suggest looking into the problem on Chrome. You just have to fix it once, I imagine and it will be fixed for all time. You never know what browser the next potential client might be using, eh?

Failing that, you should consider putting a disclaimer on your homepage indicating that this site is best viewed with the Internet Explorer or Mozilla browsers.

Your hosting company should be able to assist you in identifying and possibly fixing the Chrome issue...

Good luck,