Its not even been 15 days since I bought the laptop, the volume buttons on left side of the keyboard have stopped working. When I press those, nothing happens. No audio level indicator comes up on the display and there is no change in volume. I have already contacted the lenovo support but they couldn't help me. Also, I have already tried installing/uninstalling the hotkey driver in vain. Any help would be greatly appreciated.

P8400 2.26 GHz Core Duo 2 GB RAM Vista Business 32 Thinkpad SL300 owner

A few other drivers to try reinstalling:
1. Lenovo Power Management driver (not Lenovo Power Manager)
3. Lenovo System Inteface Driver

And as 2. you may try reinstalling the OSD/hotkey driver in between. 1-2-3 seems to be the lucky order of installing those drivers...

Hope this helps, and btw welcome to our forum!

Marin

I tried your instructions but it did not help. In any case, I appreciate your help. Finally, I (and the lenovo support personnel) had to re-install the OS. It wasn't a big deal since my laptop was new, however, its gonna be very cumbersome and annoying for someone who has a lot of files on their notebook. We need to figure out an alternate solution.

The problem with reinstalling windows in such a case is that the issue may appear again... I hope you won´t experience this problem anymore. Just somewhat related hint: be careful when applying updates from Lenovo. Lenovo System Update is not a recommended tool for doing this.