Ok, This was because I updated the kernel but not the restricted modules (they weren't available at the time...)
After rebooting into the old kernel and re-updating, the new restricted modules were installed and my wireless now works fine again...
It seems from the forums that other people were also experiencing the same problem - perhaps there should be a warning if you update the kernel but not the restricted modules (if you have them installed)? I know this has a pretty simple solution, but it can still totally break things, like the net connection, which can be a somewhat painful experience!!
Ok, This was because I updated the kernel but not the restricted modules (they weren't available at the time...)
After rebooting into the old kernel and re-updating, the new restricted modules were installed and my wireless now works fine again...
It seems from the forums that other people were also experiencing the same problem - perhaps there should be a warning if you update the kernel but not the restricted modules (if you have them installed)? I know this has a pretty simple solution, but it can still totally break things, like the net connection, which can be a somewhat painful experience!!