If Securitycheck is enabled the State/Province/Region dropdown menu not working

[goodw]

Hi for all Support Team!
I found a bug in new installed system(Virtuemart 2.0.16, Joomla 2.5.8-)
After is installed  the Securitychek  component the on account settings the  -State/Province/Region- dropdown menu not working.If disable this securitychek plugin appearer again. So, I think this bug made from this plugin, but I wait an idea, is good solution to set this -State/Province/Region- field to a text field?Or if disable this Securitychek component and plugin is not unsecure?Sorry, but I'm not an expert...
I wait any idea.
I wish Happy New Year to all Team, and forumers!
Thanks!

[Milbo]

Hello,
I am sorry, I dont know this security check plugin. So I cannot give a correct answer. But it is very likely that the component is using a conflicting jquery.

[goodw]

Thanks for reply!
I will modify the -State/Province/Region- field to a simple text field in this case.Another problem for me is the registration page not enough secure, because not contain any captcha security to prevent the spam registrations.I tried the Recaptha,Keycaptha, and the Osolcaptha plugins, but in the VM registration not appear. Does anyone have any ideas?
Regards,