General :: Broke Rt3572 Driver For Wusb600n V2 While Trying To Make It Better

I have been using UBUNTU 9.10 on a toshiba satellite notebook for about 8 months. My first challenge was getting online and staying that way with mobility. I purchased a Cisco Systems Linksys WUSB600N version 2 from the store and brought it home to install on my machine. My first install was successful, to some degree. I followed the instructions that I found here on our forums and was soon on my way.

After a while, though, I started being disappointed with my device's performance. It would frequently drop my connection, and was always reliably slow- even under a good signal. I assume that it can work better, so I proceeded to go back online, and search for a new driver. Herein lies my problem. Instead of searching for ways of optimizing the device performance I opted to install a new driver (which turns out to be the same driver).

I have read threads on installing the driver: [URL] which were very helpful the first time, but in my current position leave me hanging. I have read many pages on many sites trying to avoid posting un-necessarily, but to no avail. I think my problems stem from n00b status, and so I will divulge my symptoms:

1) I did not uninstall the first driver -- don't know if it's a problem, but i'm listing it --

2) I can't fully decipher the README file particularly this part:" 3>In os/linux/config.mk define the GCC and LD of the target machine define the compiler flags CFLAGS modify to meet your need"

# --I have followed steps 1> and 2> successfully, I think.

3) the error I receive when running make in the driver's directory is as follows:

make [1]: Entering directory '/lib/modules/2.6.31-14-generic/build'
make [1]: *** No rule to make target 'modules'. Stop.
make [1]: Leaving directory '/lib/modules/2.6.31-14-generic/build'
make: *** [LINUX] Error 2

I feel like I'm missing something essential in either the 'Makefile' or the 'config.mk' files, but now turn to the help of the community.