A Message on my laptop say's
Opera cannot open because another user is using this copy of opera
to close the other copy got to task manager to close it
Opera doesn't always shut down cleanly, just open task manager (alt control delete) and kill the Opera process. Seems to be bug that's been introduced in the last few versions.
Hmm... Not seen that for ages!
It might happen, if you close Opera and try and open it, again, before it's entirely closed.
As Faolan has indicated, Opera doesn't always behave itself. I've experienced this on occasion, and, no, Katzy, that is not necessarily the condition.
Thanks guys, me think I shall try Google Chrome...
As Faolan mentioned, it seems to have happened with the last few versions, what version are you using ?
Yes, Scholar, a reboot would fix it, but that is rather extreme when the "three finger salute" works as well.