Hey All, New mac user here. After about 2 months with a new MBP (great machine) I decided I would dual boot windows to see if I could ditch my desktop at work all together. Long story short, my custom windows xp install disk that I have been using for years was not a good choice as it is setup to run all the way through installation, including partitioning the disk etc. I have now re-installed os x leopard, and started getting all my software installed etc. However, after atleast 10-20 boots with out any issues, now I get a "no boot device found" message on every boot. Holding alt allows me to choose my os x partition and get into the os. But I'm wondering, A. what the hell happened (boot partition erased? os x partition not flagged as a boot device) and B. How can I get it fixed without the risk of horking my box again. Any suggestions?