animated gifs

[Blackjack]

I'm doing a Powerpoint Presentation and i need to make a flashing arrow. I was going to use an animated gif. There is one major drawback though:

I don't know how to make animated gifs.

I would like to know how to make animated gifs. Rewards along the lines of a half eaten kebab and maybe even one whole can of sparkling soda will be offered.

Marvellous.