To reboot, you power off the phone, then once all lights and screen is dark, you press and hold the 'home' button while pressing the top power button, releasing the 'home' button only AFTER you have pressed and released the power button (to ensure phone starts in bootloader mode, then you must press BOTH the volume UP and DOWN buttons simultaneously, and this will bring up the blue 'Android System Recovery' menu.
You should see the following:
reboot system now
apply update from sdcard
wipe data/factory reset
wipe cache partition
Select reboot system now option from the menu(using the volume buttons), press the power button and wait for the phone to go through its P.O.S.T (power on, self test) and then once the phone has fully rebooted, you can once again, test the functionality of your apps and see if your problems have been eliminated with this simple first test.
If you are still having problems, you will need to dig deeper, and possibly root your phone to gain access to the root files. Once you are rooted, you should download ROM TOOLBOX and BUSYBOX, and install these two apps. Please look up the information on how to utilize these two apps properly, or you will have more problems than you wished for.
As an added note, I would also pay for Titanium Backup Pro, but you must be rooted to use any of the apps I mentioned.
You can locate the one click root file here, or on XDA-Developers, this is called: FRAMAROOT, this is a one-click root method that is fast, easy and works on the Droid-X.
Please submit your progress so others can assist you if necessary.
I have two Droid-X models, and we never had the issues you experienced, so I assume it is from a faulty app, or a previous flash that went badly and was never corrected.
Search the older posts here, in the DroidX forums for those with similar issues and problems, I am certain someone can help you regain full use of your phone once again.
Go here for the information you seek:
Droid X Tech Support
Good luck!