My phone just keeps on playing the start up screen where it shows the motorolla symbol. then says droid and then the droid symbol and it keeps doing this over and over and over again! What can i do!
If you did the X+power button is should have taken you to a screen with a "!". This is where you can do a factory reset if everything else fails. In the mean time choose the reboot option and this time hold the menu button with the power button.
Can you pull the battery, put it back and power on the phone while holding the 'x' key down? If you can do this, you could try a factory reset (this would wipe the phone, so be warned.)
Or try booting into safe mode as described above after a battery pull...