Mmm... I cant answer your 1st question Neojag, but for your second I would recommend that you do format your hard disk and reinstall windows.
I had a hard disk with WindowsME setup on it and I gave it to my brother to put in his PC. I could not be bother to reinstall windows because I thought that the plug 'n pray abilities in Windows would realise that the hardware had changed, and prompt me to install new drivers - but what actually happened was that I detected the new motherboard and other hardware but it did not remove any of the other installed devices from it's original PC. Obviously this caused all sorts of conflicts and a reinstall was the only way around it. (I mean a clean reinstall, not just a reinstall over the top.) Hope this helps.
I had a hard disk with WindowsME setup on it and I gave it to my brother to put in his PC. I could not be bother to reinstall windows because I thought that the plug 'n pray abilities in Windows would realise that the hardware had changed, and prompt me to install new drivers - but what actually happened was that I detected the new motherboard and other hardware but it did not remove any of the other installed devices from it's original PC. Obviously this caused all sorts of conflicts and a reinstall was the only way around it. (I mean a clean reinstall, not just a reinstall over the top.) Hope this helps.