Site breaking and displaying internet explorer error message

Hi. My website keeps breaking every time when users log onto the site. It usually happens after the site has received a lot of visits. The modules get out of position, and the background disappears, and i get a message at the top of the page that reads "Internet explorer cannot display this page properly. Please click here to read more..." This message displays even when I'm using FireFox or opera.
I always have to log into my back-end to clear the cache, and this fixes the problem temporarily. Any ideas whats happening here. I would appreciate any help.

Hi

Are You using the latest template and joomla version ?

Hi. Thanks for the reply. Yes I'm using the latest gavick template and Joomla Version 1.5.21.

I have disabled the Joomla! Project System Cache plugin, and the site seems to be ok for now. I will continue to monitor it over the weekend and update you if this has solved the problem.

Hi

Ok. I'll be waiting.

Buffling why that was affecting the site, but disabling the Joomla! Project System Cache plugin seems to have solved the problem. I haven't had any more problems, and the site is even performing better than it was before. Thanks

Hi

Than I'm glad You find the workaround