Question Kunena page problem with cache settings set to on

Progresive or conservative cache on gives a reduced page size similer to the blog picture. However looking through explorer gives the broken view on other atachment. Logging in corrects it till I log out. Turning cache off corrects it when logged out..
Any ideas?

Database collation check: The collation of your table fields are correct

Legacy mode: Disabled | Joomla! SEF: Enabled | Joomla! SEF rewrite: Disabled | FTP layer: Enabled |

This message contains confidential information

htaccess: Exists | PHP environment: Max execution time: 30 seconds | Max execution memory: 512M | Max file upload: 128M

Joomla default template details : yoo_downtown | author: YOOtheme | version: 1.0.2 | creationdate: July 2011

Kunena default template details : Blue Eagle (default) | author: Kunena Team | version: 1.6.5 | creationdate: 2011-07-27

Kunena version detailled: Installed version: 1.6.5 | Build: 5005 | Version name: Babel | Kunena detailled configuration:

Warning: Spoiler!

[th]Kunena config settings:[/th]

board_title	The British film and cinema community
board_offline	0
board_ofset	0
offline_message	<h2>The Forum is currently offline for maintenance.</h2> Check back soon!
enablerss	1
enablepdf	1
threads_per_page	20
messages_per_page	6
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	1
jmambot	1
disemoticons	0
template	default
showannouncement	1
avataroncat	1
catimagepath	category_images/
showchildcaticon	1
annmodid	62
rtewidth	450
rteheight	300
enableforumjump	1
reportmsg	1
username	1
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showemail	0
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showkarma	1
useredit	1
useredittime	0
useredittimegrace	600
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allowsubscriptions	1
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allowfavorites	1
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regonly	0
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mailadmin	0
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mailfull	1
allowavatar	1
allowavatarupload	1
allowavatargallery	0
avatarquality	65
avatarsize	2048
allowimageupload	0
allowimageregupload	0
imageheight	800
imagewidth	800
imagesize	150
allowfileupload	1
allowfileregupload	1
filetypes	txt,rtf,pdf,zip,tar.gz,tgz,tar.bz2
filesize	120
showranking	1
rankimages	1
avatar_src
fb_profile
pm_component
userlist_rows	30
userlist_online	1
userlist_avatar	1
userlist_name	1
userlist_username	1
userlist_posts	1
userlist_karma	1
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userlist_lastvisitdate	1
userlist_userhits	1
latestcategory	0
showstats	1
showwhoisonline	1
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showpopuserstats	1
popusercount	5
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rules_infb	1
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help_cid	1
showspoilertag	1
showvideotag	1
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trimlongurls	1
trimlongurlsfront	40
trimlongurlsback	20
autoembedyoutube	1
autoembedebay	1
ebaylanguagecode	en-gb
fbsessiontimeout	1800
highlightcode	1
rss_type	topic
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rss_included_categories
rss_excluded_categories
rss_specification	rss2.0
rss_allow_html	1
rss_author_format	name
rss_author_in_title	1
rss_word_count	0
rss_old_titles	1
rss_cache	900
fbdefaultpage	recent
default_sort	asc
alphauserpointsnumchars	50
sef	1
sefcats	0
sefutf8	0
showimgforguest	0
showfileforguest	0
pollnboptions	10
pollallowvoteone	1
pollenabled	1
poppollscount	5
showpoppollstats	1
polltimebtvotes	00:15:00
pollnbvotesbyuser	100
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maxpersotext	50
ordering_system	mesid
post_dateformat	datetime
post_dateformat_hover	datetime
hide_ip	1
js_actstr_integration	0
imagetypes	jpg,jpeg,gif,png
checkmimetypes	1
imagemimetypes	image/jpeg,image/jpg,image/gif,image/png
imagequality	50
thumbheight	32
thumbwidth	32
hideuserprofileinfo	put_empty
integration_access	jomsocial
integration_login	jomsocial
integration_avatar	jomsocial
integration_profile	jomsocial
integration_private	jomsocial
integration_activity	jomsocial
boxghostmessage	0
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topicicons	1
onlineusers	1
debug	0
catsautosubscribed	0
showbannedreason	1
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popthankscount	5
mod_see_deleted	0
bbcode_img_secure	text
listcat_show_moderators	1
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activity_limit	50
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userlist_allowed	1
userlist_count_users	1
enable_threaded_layouts	0
category_subscriptions	post
topic_subscriptions	every
pubprofile	0
thankyou_max	10

Third-party components: Jomsocial 2.2.3

Third-party SEF components: sh404sef: The file doesn't exist sh404sef.xml !

Plugins: System - Mootools Upgrade: Disabled | System - Mootools12: Disabled

Modules: None

I'll leave it as it is on www.britmovie.net so you can see the problem.

I cannot use your site with FireFox 5.0 / Linux: it asks me to update my browser.

I'll turn that off now.

Cant turn it of but the is a link to bypass it.