Problem with joomla back-end

[liso]

'morning to all!

I've a problem with my virtuemart component.
While i was adding a new field in a registration form, a 404 errore came. I've tought that was a problem connection and i've returned to the administration page. But virtuemart is  disappeared from the Component menu. So i've reinstalled the virtuemart component...but nothing...i've also done the re-upgrade joomla to the last stable version, but virtuemart selection doesn't appear!
how can i resolve this problem?
when i've reinstalled the AIO pack, it has returned in the menu!

thanks a lot in advance!

Tommaso

PS. I use Joomla 2.5.8 and VirtueMart 2.0.14

[jenkinhill]

http://forum.virtuemart.net/index.php?topic=101120.msg336461#msg336461

[liso]

Great!
now it work!
Thanks a lot! you're fantastic!!!