[BioC] biomaRt package listMarts() error

[Ye, Bin]

Hi, everyone,

I met an error message when I using biomaRt package. 
> listMarts()
Error in if (is.na(pattern)) { : argument is of length zero
In addition: Warning message: 
is.na() applied to non-(list or vector) in: is.na(pattern) 

Does anyone know what's wrong? I'm running windows 2k, R 2.0.1, bioconductor 1.6, and biomaRt 1.1.2.

Thanks a lot!


Bin