Trying to root my Droid Razr M

[andy345]

I'm new to Android phones and Rooting but found what looked like a fairly easy way to Root my phone.

I have been trying to root my phone using Motochopper and followed the instructions as directed. I go through the command prompt and everything looks to me as if it worked ok and my phone reboots at the end. When it boots back up I use Root Check to tell me if it was rooted, it tells me, my device does not have proper root access, then, when i go into Superuser I get the following message, The Superuser binary(su) must be updated, when I then choose install, it says "There was an error installing Superuser. Please send a log of the error to the developer.

Can anybody give me any advice on what I maybe doing wrong ?

Thanks.