simonB wrote:Does the green USB light stay on? If it is flashing then the USB connection has been lost. This an often be caused by a power surge such as a smoke machine lighting power supply on the same circuit as your laptop power.
Nope, all the lights where good. And i have found the problem
. I used a virtual machine (VM fusion) that worked perfectly fine untill i installed a update.
Apperently one of the drivers stops working after a few minute's, nasty bug! Sow i installed windows 7 on a NTFS partition on my macbook and all my problems where gone for good! ^^. Lessons of the day: never use a virtual machine