For the last two days, I cannot upload anything. I keep getting the invalid screenshot message. I have tried a few different files and always get the same result. Does not matter if I am using IE8 or Firefox. What could be causing this sudden error? I also got a script error containg the message "Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729)
Timestamp: Sat, 12 Sep 2009 15:31:58 UTC

Message: 'checked' is null or not an object
Line: 390
Char: 40
Code: 0
URI: https://www.wincustomize.com/upload.aspx"

Doesn't matter which upload site I try here.