I am having trouble installing parallels tools every time I try the VM crashes. I tried uninstalling both parallels and what tools do get installed and then reinstalling them but still crashes. I tried to contact parallels support but they will not respond. I do not know if any one else has had to deal with parallels support but the are some of the worst I have ever encountered I am having problems with the tools not installing on my MBP i think it is because of the new santa rosa and Nvidia. The real problem is that in the past two + weeks I have now sent them over 60 FATAL ERROR email reports with absolutely no response. I have sent in for there email support still no response I have also posted on there forum with no response yet. I really do not think they care to help there customers this is very alarming to me that a company would treat there customers so poorly with there support. Don't take my word for here is a article http://www.switchingtomac.com/wp/parallels-not-so-parallel/ or just send them a email and see if you can get any thing other then we will be back to you in 3 business days. If any body can help me solve my problem it would be great as it is I can not even run coherence or duel monitors. Please don't take this the wrong way I run parallels on two computers. On my Mac Pro every things works great it is just on my MBP and I can not get support. If you are looking for a VM for your computer you may want to look into it a little bit.