[BioC] simpleaffy betacf error in 1.2.3

[grandi folia]

Hi:

I would like some suggestion on how to go around the
following error with simpleaffy:

Using:
R 1.9.0
simpleaffy 1.2.3

Code:
rawdata <- read.affy(covdesc="covdesc.txt")
rma <- rma(rawdata)
pw.ua <- pairwise.comparison(x=rma, group="treatment",
members=c("u", "
a"))
Error in get.fold.change.and.t.test(x, group, members,
logged = logged,  : 
        a or b too big or not enough iterations in
betacf

I got this error initially with a lower version (1.09)
of simpleaffy, and then upgrade it to 1.2.3, as
suggested in one of the archived email. But the error
did not go away. Any suggestions would be much
appreciated!

Jan Folia