glm cannot find valid starting values

Hi,

I have some similar problems. Some times ago this problem dont there existed.

Look this simple example:

Y <- c(0,0,0,1,4,8,16)
X <- c(1,2,3,4,5,6,7)

m <- glm(Y~X,family=gaussian(link=log))

Error in eval(expr, envir, enclos) : cannot find valid starting values: please 
specify some

m <- glm(Y~X,family=gaussian(link="log"))

Error in eval(expr, envir, enclos) : cannot find valid starting values: please 
specify some

What is the problem? I think that the problem is with the log link algorithm 
and zeros.

Look

Y <- c(0,0.1,0.5,1,4,8,16)

m <- glm(Y~X,family=gaussian(link="log"))

Error in eval(expr, envir, enclos) : cannot find valid starting values: please 
specify some

Y <- c(0.01,0.1,0.5,1,4,8,16)

m <- glm(Y~X,family=gaussian(link="log"))

Without Zeros it work.

It is a real bug?

Thanks
Ronaldo

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