File Roller extracting rar archives

[Panos Laganakos]

Hello,

I've been trying to extract some .rar archives, but it seems that the
build included with ubuntu breezy won't let me.

Is it the fact that .rar is proprietary(?) format?

Any way to activate .rar archive extraction in file roller or will i
have to build FR from source?

Thanks.

p.s. The archives extract fine under windows, so its not that they're damaged.