chrome all black

sometimes when i start chrome, it is all black for 30-60 seconds

AddRAM said:

You could uninstall Chrome and reinstall.

There`s a new update for it.

ok thnx AddRAM

i didnot understood what do you mean by "There`s a new update for it"

There is an updated version of Chrome.

I think the OP did not understand what you already said.
Chrome should be updated automatically unless the user has disabled "Google Update Service".
The OP may also download the latest version from:
Google Chrome - Download the Fast, Secure Browser from Google

thnx guys once again

Mine does the same thing on my three PCs. But it's not all black. Maybe the top third is black, and the bottom is white. After about 30 seconds it loads normally.