Error on startup

I couldn't decide to put this here or in bugs so move it if necessary.

I've got a usb and live cd of backtrack 4 final, when I boot up either one on my computer I get the error: EXT3-fs:Couldnt mount because of unsupported optional features (240)

Eventually it finishes booting and I can use most features of backtrack except wi-fi. I did google this and search here all I can figure is that it has something to do with me have ubuntu in one of my partitions. If anyone could give me a fix it'd be appreciated.

Edit: found a fix 1)crash your computer 2) restore to windows 3)install backtrack....

lucky~
i'm sure you already saw this... but if you boot into your ubuntu system, what does the fstab say about your root partition?
mounting error? [SOLVED]

i'm thinking if you have the issue listed above, try the ext3/ext4 change in /etc/fstab and then try to boot BT again to see what happens?

also, for a second opinion, i came across this:
Hak5 Forums > Backtrack 4 final is giving me some problems that I am unable to solve

good luck with that, be sure to post the solution when you get it figured out, neh?

EDIT: also, could you be a bit clearer on your wi-fi issues? it is entirely possible that you have an unrelated issue there...