alg.exe Local Service: A problem?

Started up my laptop and went to view an online tutorial about monitor profiling (not sure if that was the reason for my problem though).

I noticed that my Outlook and Firefox icons in the system tray were flashing orange. They also had to be double clicked to open them on the screen.

Had a look in the Task Manager and I noticed something called alg.exe Local Service at the top of the list. Never seen it before.

I switched it off and the icons returned to their normal blue.

Any idea why alg.exe was suddenly turned on?

I rebooted and it's back on again, but everything is working fine. Also, it's much further down the list in Task Manager now. Don't know if this makes any difference.

Ta.

D.