1 Reply Latest reply: Mar 17, 2013 8:07 PM by Ccardinal
Ccardinal Level 1 (0 points)

I am trying to prepare to install Mountain Lion.  I did the most recent update a few hours ago.  Now my MacBook is running very slow & I get an error message "An error occured with an internet plug-in".  I can click OK and continue onto the page, but it's every single new page online that I'm getting this error. 

MacBook Pro, Mac OS X (10.6.8)