problem about using certificate

[hzhijun]

if i comment the following line: #SSLVerifyClient require the internet explorer can visit my apache server(version:Apache_2.0.52-Openssl_0.9.7e) with url:https://10.71.105.40/index.htm   But, if I use SSLVerifyClient require option, internel explorer can't visit the above url.   What maybe the possible reason?