I have Mac OS X Version 10.6.4: Model Name: iMac Model Identifier: iMac11,1 Processor Name: Intel Core i5 Processor Speed: 2.66 GHz Number Of Processors: 1 Total Number Of Cores: 4 L2 Cache (per core): 256 KB L3 Cache: 8 MB Memory: 4 GB Chipset Model: ATI Radeon HD 4850 Type: GPU Bus: PCIe PCIe Lane Width: x16 VRAM (Total): 512 MB Vendor: ATI (0x1002) Device ID: 0x944a Revision ID: 0x0000 ROM Revision: 113-B9110C-425 EFI Driver Version: 01.00.383 Displays: iMac: Resolution: 2560 x 1440 Pixel Depth: 32-Bit Color (ARGB8888) Main Display: Yes Mirror: Off Online: Yes Built-In: Yes Connection Type: DisplayPort Display Connector: Status: No Display Connected I installed windows 7 with bootcamp successfully, installed the drivers from the "Mac OS X Install DVD" but i get freeze screens/black screens and a message, "display driver is not responding and has stopped working" when it works again. This happens very often maybe every 5 minutes, sometimes it never recovers from the freeze/black screen and i have to restart from the power button. When he's in a good mood he gives me a blue screen for a change and restarts. Also i cant access my hard drives because i cant operate as the administrator and it doesn't ask me for a password or something. How do i log in as admin?