The cursor is not moving buttons are working

Have a look at http://www.videohelp.com/dvdhacks There is no hack yet posted for the RH735T. But you could try the hacks that work for similar LG models on the offchance that they'll also work for your 735. If you find it works, then update the site and say so. It will help others as you have just been helped now. :)

1.Switch Player ON
2.Hold the CLEAR button on the remote control whilst
pressing and holding the programme down button on the player
for 6 seconds.
3. A menu will appear. NOTE.. be careful when using the
remote to move the cursor as you can inadvertently change
other codes.
4. Using the cursor buttons on the remote move left or right
( not up or down ) to move the cursor to OP 6.
5.Move the cursor to position aa and change the code using
the up and down cursor keys so that the code is changed to
8e.
6. Press the OK/Enter key on the remote control
7. Press the Menu/List key on the remote control
8 This should result in the region code being edited and the
player should switch off.

As with all editing of the software it is worth making a
note of all existing codes before making any changes in case
you make a mistake along the way.

It could be the light, but have you tried using a different less reflective surface?

It's bad and needs to be changed, ie if you must keep enjoying the old functions.

I have the same problem

On the right hand side of this television there are panel buttons. It appears that your son in law knocked the tv out of the correct input. Press the input button in order to cycle through the 5 inputs. Typically pressing the input button on the side panel of a television and pressing it again and again and again will make it change inputs. Universally the buttons on the tv panel function as follows: Channel up moves the cursor up. Channel down moves the cursor down. Volume + moves the cursor right. Volume - moves the cursor left.
Hope this helps

Question What should I do if my TV is stuck in Retail mode? Answer Your TV may have been set to Retail Store mode, which is mainly used on the shop floor.
For home use, we recommend that you set the TV to HOME mode, which will allow you to change the settings.
To change to HOME mode follow the steps below.

1. Press the 'MENU' button on the remote control to access the main menu.
2. Move the cursor down to select INSTALLATION and move the cursor right.
3. Move the cursor down to select PREFERENCES and move the cursor right.
4. Select LOCATION and move the cursor right.
5. Move the cursor up/down to select HOME and press the 'OK' button for confirmation.
6. Press the 'MENU' button to exit the menu.

I just read one of the other solutions, and it was to try and press the reset and mouse reset buttons together - woked for me! yay!

Louise

Hope this helps others. My mouse stopped controlling cursor but buttons worked. Problem was it would not work on a black table. Slip a piece of white paper under it and waaala! It works. I'm thinking optical mouse and dark surface might be an issue.

Q: After pairing my mouse, the button click works but cursor tracking does not move. What can I do?A: The cursor tracking problem is because red sensor LED is not on. Please try another set of battery or fully charge battery again, and verify if bottom red LED turns on. If red LED still does not turn on, please remove batteries from mouse, press and hold the pairing button for 5 seconds, next press and hold the left and right buttons simultaneously for 10 seconds, followed by several clicks. Install the battery into mouse, you should see red LED turns on, mouse cursor will move.

Q: After pairing my mouse, the button click works but cursor tracking does not move. What can I do?A: The cursor tracking problem is because red sensor LED is not on. Please try another set of battery or fully charge battery again, and verify if bottom red LED turns on. If red LED still does not turn on, please remove batteries from mouse, press and hold the pairing button for 5 seconds, next press and hold the left and right buttons simultaneously for 10 seconds, followed by several clicks. Install the battery into mouse, you should see red LED turns on, mouse cursor will move.