Aftter FRG83D Lower Portion/Parts of Touchscreen Will Not Work

Question

I updated my phone On the 8th or 9th of December. After which portions of the lower half of my touchscreen will react to a different spot (Example: With screen vertical and using Droid keyboard touching "r" will show "t" being pressed, etc.) A small portion of the upper half does not respond, either.
Motorola Droid, bought "Certified Pre-Owned". Bought around July of this year. I have never had any problems ever before this update, even after dropping it a few times. I have not left it in extreme conditions (such as my car since it's getting really freaking cold), have not spilled anything upon it, I use the Verizon charger.
I haven't found anything about this anywhere. A friend updated his phone the night the update came out and said he had had this issue but I don't think it's as major for him. I can get around some of the annoyances by just sliding open the phone which reverts the screen to show horizontally which will allow access to what I needed to touch but in a different spot on the phone as well as the normal typing.
The other thing I was going to look up was how to revert back to an older update, possibly. I've also been meaning to root my phone but need to find my Windows laptop for that (Use a Mac mainly)
So yeah, any help would be fantastic. The issue comes and goes in certain spots and like I said, there are some ways I can get around it but some apps I end up not being able to use at all because I cannot access one specific spot on the touchscreen no matter what I try.

Answer 1

We are aware of the issues that come with the software update and are working to resolve those issues. Until the issues are resolved, I recommend completing a factory reset for your device. It can be done through either of the following two ways:
Factory Reset option 1
From the main screen, touch menu tab
Touch Settings
Touch Privacy
Touch Factory Data reset
Touch Reset Phone
Warning: This will erase all data from your phone, including:
Your Google account
System and application data and settings
Downloaded Applications
It will not erase: Current System software and bundled applications; SD Card files, such as music or Photos
Factory Reset option 2  - Warning this will reset device back to original factory settings.
Turn off the phone
Press Power key + "x" (on the hardware keyboard) to power on the phone and bring up the recovery screen
Press and hold Volume Up + Camera Key until recovery menu appears, release keys when it appears
Using the Volume keys, select "Wipe data factory Reset",
Press the center of 5-way navigation pad
Using the Volume keys, select Yes -- delete all user data
Press the center of 5-way navigation pad
Using the Volume keys select Reboot system now
Press the center of 5-way navigation pad