Great stand, though I had a similar issue

I use this stand on a daily basis, and though my laptop eventually started to slide, I read in the instructions that I needed to clean the pads to rid them of dust and debris that can build up causing this. Now I do it every month and my laptop doesn't budge.

Slip sliding away

I got this product for my 15" Mac Book pro and was initially thrilled as it is a nice looking product that keeps the computer elevated at an excellent angle. But after about 4 months, I noticed the computer would start to slip down the stand, that the grip pads were not holding the computer anymore. Maybe the heat from the laptop melted the grip on the pads or something. After the computer slid all the off and hit my desk one night I just threw the stand away.

Computer slips off stand

About an hour after leaving my laptops side I awake to a crash and realized that my laptop was no longer on my desk but on the floor. I had left the screen open with it on what i thought was a secure laptop stand. I closed the laptop and put it further up on the stand so i could see if it slipped down by morning. . .Well it did, the computer slipped a good 3 or four inches. This product needs some sort of lip on the end of it so the computer does not fall off. The previous clear model from Griffin had this and I am not sure by they decided to get rid of it. I am going to return the product. My laptop is worth too much to risk it falling again.