Feeling Yellow

Whats this I see, Somethig awful, perilous, and yellowous,
The cursed jaundiced infected cursor,
A present from Googlelous I fear
A cruel joke for the time of the year.
Or Gateous virus from planet microsop
An auto-update weather you like it or not
Such a malady, who wil free us
Perhaps that Norton anti-virus.
However before hastening to my next move
I'll sleep on it, and hope
I'ts just some wise guys Halloween joke.

Sorry about this post but my mouse cursor, turned a sickly yellow yesterday, has anyone else had this problem. Its ok today.
Puzzled