Error while logging in

[Ghostreaper]

Getting some odd error while attempting to log in.
Soon as i click the server it goes untill logon sent, comes back as a bad logon and then more info is given, invalid cross thread access.
Error_Reset_Recv
Version 4.0.60310.0
File= System.Windows.dll&Key=InvalidCrossThreadAccess

Unable to even see my char's listed. wont even go that far.

[Ghostreaper]

Am able to log back in, not sure what caused it, just all of a sudden was fine again.  possibly silverlight?

[Ghostreaper]

still getting this error randomly, always goes away after the server resets/restarts at 4:00am my time.  dunno whats causing it but its a bit anoyying. not only with I.E but firebox and chrome.