I'm getting an error similiar to this one:
. I didn't make a screenshot from my pc, directly showing the problem with an arduino, because I'm using a german version of Windows. But errormessage is the same as shown.
I also found this http://arduino.cc/forum/index.php/topic,28753.0.html
thread in the forums, but it still doesn't solve my problem.
Have there been any other ideas on this coming up since 2011? I'm quite desperate.
EDIT: I'm using an Arduino UNO Rev3 on Windows 7 64bit.