The mouse on my daughter's learfrog clickstart barely moves the cursor on the screen. How can I fix this? I've already replaced the batteries

Have you tried going to your settings and increasing the brightness,if you did then you can watch this:

How to fix black screen issue with mouse cursor only in Windows® Vista - YouTube

? 2:05
https://www.youtube.com/watch?v=jBZvlPZLzSk
Jul 24, 2014 - Uploaded by iYogi
Watch this video for steps to fix get a black screen with mouse cursor ...How to fix black ...

Press the button on the back of the mouse to free the battery cover on top.

Remove the battery cover and put the supplied AA battery into the mouse.

Replace the battery cover.

Insert the wireless USB dongle into a USB port on the laptop or desktop computer.

Move the mouse and watch your computer screen.

Confirm that the mouse is connected by making the cursor move.

Hope this helps

replace batteries they get weak and cause mouse to act strange

replace mouse

replace mouse pad, make sure you use mouse pad

clean led light

clean mirror

I got a cheap replacement plug-in led mouse for under 9 bucks Walmart

Sounds like the laser failed. Return it for replacement.

Remove 3 screws from bottom of mouse. Remove and clean "prism" with glass cleaner. Use Q-tip to clean receiver next to LED. Hope this works for you too!

Hi, my cursor had frozen on my screen after my grand daughter pressing something. After trying everything I decided to take it to a local computer shop, it was fixed in seconds. He held the arrow tab(below the caps lock tab) and then pressed F9 it worked!!
Hope this will fix your problem

I am still waiting to know what to do.Is there a substitute for this mouse?

We had this happen within the first 30 minutes that we owned the Click Start! It still happens periodically when the kids are using it. For us the LED lights are flashing non-stop on the keyboard, and the mouse does not move the cursor on the screen and you cannot "click" on anything either.

Solution: On the underside of the keyboard is a very tiny hole. Push a pin or a paper clip into it, you'll feel some give in there like you are pushing a button. I push it until the lights stop flashing on the keyboard. It's the reset button. So far this has worked for us everytime.

Good luck.

are you sure you have the keyboard near enough and pointing towards the computer unit. As it is said that it works wirelessly (which obviously is correct as there are no wires) but this normally means wi-fi which can be moved anywhere however the clickstart works with the very unreliable infa red so the unit needs to be close and pointing towards the keyboard. hope this helps

You say that this has been happening with a wired mouse as well?
In that case, you probably have a kind of virus/malware. Try this first:
http://housecall65.trendmicro.com/
Do a full system scan. You may have to temporarily disable/uninstall your current anti-virus if you have one already..
If not, try a system restore.