Boot problem - Leopard gets stuck while loading desktop

[jockmock]

I have a problem that arose like a couple of days ago.
When I load Leopard it takes like 10 times more than usual to get past the apple logo. Then when I get to the blue desktop, I can see the mouse, which you usually do before your desktop pops up and you can use the comp. But now instead it dissapears, and the screen becomes a little darker blue. The loading symbol that appears below the apple on the booting screen appears. It then dissapears, and the the desktop becomes light blue again. This happens forever.
I think it has to do with me installing Windows through Boot CAmp or something. I have been able to use both simultaneously for a month now though without problems. Suddenly this problem arose though. Something's weird though, as I can't access my mac drive from windows ( I have MacDrive installed). Also, the bootcamp assistant tray icon dissapeared from the tray field. It can still be accessed from the Control Panel though.
Any advice on what to do?

 

[qacjared]

reinstall leopard

 

[Amdahl]

Try booting Safe Mode by holding Shift when you hear the boot chime and don't let go until the gear has spun a few times. Just reboot normally after it gets to the desktop.

Boot from the DVD disc, and run Disk Utility. Repair the disk.

 

[SnowLeopard2008]

try resetting the pram. cmd+option+p+r before the gray screen. and also try doing a SMC reset. to do that, turn off the computer and remove battery/charger. press power button for 5 seconds and put eveyrthing back in and boot it up. i'm assuming you have a laptop... for the last thing.