Virus?

[BorisZ]

I noticed that while using Opera cursor dissapears from time to time. It never happened  to me before. I used some Antivirus software but noone finds nothing.
Anyone had similar expiriencecs?

[scotch]

Viruses don't usually do things like that, they'll either do nothing, or break things, but they don't make cursors disappear after a while of using Opera.  It's probably some problem with your version of Opera or your mouse drivers, or something of that sort.  Try updating/downgrading Opera or seeing if it happens if you use a different browser for a while.

[BorisZ]

I once had a virus that causes cursor to fall of the screen. You don't know what crazy ideas that idiots that make viruses have.

edit

yes,  it was VIRUS!