Each time I shuting down my virtual machine - it takes like 30 minutes for VM Ware to complete the process. The shut down is done, but it shows a black screen and doesn't respond to any command. I can't do a Power Power OFF or Power Suspend. When I click it - nothing changes. When trying to close - it says "still busy". This happens only when using a Virtual Machine stored on an external hard drive. When Virtual Machine files are stored on a local drive - everything is OK. Hard drive is working good. Any suggestions how can I investigate the issue?