Hi Sanna,
From your description, it can be caused by a browser problem.
To solve this issue, we suggest you follow the steps below:
1.Use IE 8 and above version.
2. Reset IE and clear the IE Cache:
To reset IE, please refer to this link: http://support.microsoft.com/kb/923737
To clear the IE cache: Open IE->Press F12->Click “Cache”->Click “Clear browser cache”
3. Delete browser history: Open IE->Click “Tools” (in the upper right)->Click “Internet options”->Click “General”->Click “Delete” button under Browser history.
After you finish the above steps, try again.
Thanks,
Jacky Ding