eems that Hikvision - iVMS 4500 is dead on arival
they added a update, i updated the copy on my iPad2 and since then it does not work, i can not log into the devices,
i had a copy of the older version on my iPhone and iPad 1 and it still works and all these devices use the latest ios4
i wrote to Hikvision about it and they wrote one email in response asking my location to be assisted but on reply i got a email delivery, as if i am blocked
anyone else