[ubuntu] Dash Home won't start

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http://ubuntuforums.org – Hey guys, When I click on the Dash Home icon in my launcher, it shows the arrow saying that it is opened, but, it doesn't display it on the seen. Coincidentally this only started when I put my laptop to sleep for the night. It was working fine before that. I tried rebooting, and restarting Unity, but when i put the command "unity --replace" or "unity --reset" in the terminal it said "the program "unity" is currently not installed". Should I reinstall unity? Why did it just delete itself? :confused: Thanks; L1NUXFR34K (Hardware)