I'm new to mydellmini so i don't know if this has come up in a previous post so please bare with me...I have a dell vostro A90 that I installed mac osx on. Everything has been going I've had it for 4 months with no problems...until today. When i turn it on it goes through the dell load screen, then the darwin load screen, then to the mac load screen like usual. However after the mac load screen finishes the computer screen goes black and then after about 5 seconds begins to boot from the dell screen and goes through the entire process!!! If someone could help me I'd really appreciate it. Thanks!