Applications switching back to ............
I'm using Mac OS X 10.7.5
Every application is switching off ( three coloured dots turning grey after 10 secs) after last Mac OS X software update last week.
I don't know which one exactly.
When I'm typing this it switched off 10 times and heared the beaps with every keystroke.
I'm usin Lion. When click on a app I see the three coloured dots top left but they turn to grey atfer 10 secs or faster and every click produces the beap.
Then I click on the toolbar to turn them back on and they switch off after 10 secs or faster again.
This in every application also Finder.
How can I solve this?
MacBook Air, Mac OS X (10.7.5), 2.5 GHz Intel Core 2 Duo