filter problem with sizes

Hi,
I have problem with filter sizes, when i insert the size attribute for a product
(e.g http://www.pentavras.gr/pentavras-79 ) i have 2 box sizes and 2 same number of sizes!!
I have the same problem again and again!! I cant import any product...

http://www.pentavras.gr/flats

Thank you!

ps. I already have sent message to [email protected]

Hi xtsiliv,

I can not see the problem.
On your website, I can see that you have a size attribute group and it is showing only once.
Can you please give us more information about the problem?

Ivan Stoyanov