Need some help on htaccess and admincp

[pityocamptes]

Well I added this to increase load speed, which it did for my site. However, while trying to get into my admincp it accepts the pw but brings me right back to the login box... big loop, never lets me in. Did I do something wrong on the htaccess? Thanks.

<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType application/javascript A604800
ExpiresByType application/x-javascript A604800
ExpiresByType text/javascript A604800
ExpiresByType text/css A604800
ExpiresByType image/gif A604800
ExpiresByType image/x-icon A604800
ExpiresByType image/icon A604800
ExpiresByType image/jpg A604800
ExpiresByType image/jpeg A604800
ExpiresByType image/png A604800
ExpiresByType text/html A604800
</IfModule>

# BEGIN Caching
<ifModule mod_headers.c>
<filesMatch "\\.(ico|pdf|flv|jpg|jpeg|png|gif|swf)$">
Header set Cache-Control "max-age=2592000, public"
</filesMatch>
<filesMatch "\\.(css)$">
Header set Cache-Control "max-age=604800, public"
</filesMatch>
<filesMatch "\\.(js)$">
Header set Cache-Control "max-age=216000, private"
</filesMatch>
<filesMatch "\\.(xml|txt)$">
Header set Cache-Control "max-age=216000, public, must-revalidate"
</filesMatch>
<filesMatch "\\.(html|htm|php)$">
Header set Cache-Control "max-age=1, private, must-revalidate"
</filesMatch>
</ifModule>
# END Caching