logoff script not doing its job

Howdy all, I have a quick question for you…. I am using a logoff script via group policy to clear the browser history at logoff, but it isnt doing its job. I am using one I found on the web called exp.cmd it’s verbatim is:

cd %homedrive%%homepath%
rd /s/q cookies
rd /s/q locals~1\history
rd /s/q locals~1\tempor~1

What happens is the machine fereezes at “running logoff scripts” and you have to hardwire reset to continue 🙁 I tried removing the last line and then it will log out properly, but wont clear the websites visited. Any ideas?
THX all!
Kalapper