change frontend language to german causes a lost of all categories and products

[proqd]

latest german language pack installed...

as soon as i change the frontend language to german, all my virtuemart entries ( categories, products etc ) are lost... when i change back to english - everthing is fine...
furthermore after changing frontend lanuage to german,  all shop configuration ( like company, shop address etc ) has gone... if i want to enter the shopname once again... i am told that this shop is still there...

if i use englisch front end language and change the "en" in the browser to "de" manually, i have the result i need...

i don`t know what to do! if you need further info - let me know
vielleicht kann jemand helfen...

Latest versions are installed!

Dirk

[jjk]

The solution for your problem probably is within this forum thread:
http://forum.virtuemart.net/index.php?topic=101280.msg335740#msg335740
Also check in your database tables, if your german text in the ..._virtuemart..._de_de tables. If you started to enter german descriptions into the en_gb tables, you might need to copy them into the de_de tables.