I'm having a problem with a clients website. They're running Apache 2.0.61. When I enable mod_deflate Safari (4.0.4) struggles to display the page correctly. Its as if its missing out the Ajax code. When I turn off compression for Safari it works fine. All other browsers are fine.
The easiest way you could do is to add one of the two following lines:
BrowserMatch Safari gzip-only-text/html
BrowserMatch Safari no-gzip