if i wanna translate the page
it gives the adress like so: http://mysite.com/admin/show/63/admin/admin/show/71/?locale=en_US
but it must be http://mysite.com/admin/show/71/?locale=en_US

how to fix it

Using version 2.3.3
in config

i18n::enable();
global $allowed_i18n;
$allowed_i18n = array('et' => "et_EE", 'en' => "en_GB", 'ru' => "ru_RU");
i18n::set_locale('et_EE');
Object::add_extension('SiteTree', 'Translatable');
Translatable::set_default_locale('et_EE');
Payment::set_site_currency("EEK");
Currency::setCurrencySymbol(' ');

if in estonian link what i have already made i select translate tab and choose language what is en_gb or ru_ru i get the strange adress as shown above

I get the same error, but I'm not using the i18n::enable();

I only have Object::add_extension('SiteTree', 'Translatable');

Version 2.4 has the same problem, all works fine in Mozilla, Safari, Google Chrome and IE8 in Win7.
This problem occurs only in Windows XP + IE.

Seems, that IE under XP doesn't work correctly with cache. I found this post: http://www.silverstripe.org/general-questions/show/260267#post260267

And I think, that something like this must be added:
if (IE) {clear_all and return blank_URL}

But I cant found, how and were the link generated after translating.
Please help, all ideas are welcome!