Cannot add items to cart (IE only)

[zemadfrenchman]

Well, I'm not lying. I got the exact same issue with apache 2.2 win32 on server 2008 r2. I was able to replicate this on multiple environments

Server 2008 R2 does have a lot of differences from win7. I did not try apache on win7

It's also possible you're changing some setting in apache httpd.conf out of habit that isn't in the install documents that is preventing the problem for apache on windows - that's why I asked for an example httpd.conf