Client Cache deactivated after plugin activation

[gessler]

Thank you, that did it, for whom has got the same problem modify line right after <?php to something like
if (session_id() == '') {
session_cache_limiter(false);session_start();
}

My tests showed no sie effects, but sure there is a posibility to have ones,
I´ll try when I got the time to make a template file just for the contact form and include the no-cache setting in the header of that template file to prevent client caching for the contact form.
Besides that little problem that annoyed me a bit I´m absolutely happy with Get Simple, Lean, Fast and supereasy to make your own template, try that with wordpress or even joomla......