uploading attachments,not loading !,help.

[bosanci28]

i have notice that when making a new tread and i want to upload attachments,normally it suppose to show all my files that i previously uploaded then i click select to upload more,

now in my case i click manage attachments,then the window is empty ,no files and if i click upload,the select files and try on file to upload will give me a error,so i close the window and try again,from the first,
manage attachments ,...,i do it few times,in till i see all my files that i have uploaded before and then finally it let me upload again!

anyone has any idea why this is happening?

thanks !!!