"Miner failed to start"

[Sonicx00222]

"Miner failed to start. Make sure you have the minerd executable and libraries in the same directory as Litecoin-Qt."
I keep getting that error whenever I try to start mining. The weird thing is that I HAVE the executable there, I just got the new version to make sure. The miner was working fine a few days ago, then suddenly it went kaput. I've finally been so frustrated that I posted here, does anyone know a fix for this? I run Ubuntu 12.10. My two other miners on Windows work perfectly, I've tried chmod in the command line, but maybe I used it wrong or something, because it didn't do anything helpful.

[nethead]

Check your antivirus, i had the same problem

[Sonicx00222]

Check your antivirus, i had the same problem

I don't have an antivirus installed, anything else I can try?

[Sonicx00222]

It seems to have fixed itself after I updated Ubuntu. Still have no idea what caused it. Thanks for all the help!