Error setting Video server

I used to be a fan of Mandriva and when the company had issues... I sort of went elsewhere. I'm back with Mageia and liking it.
My initial install of Mageia 4 was a bit plagued though.
1st...
Let me say I checked the MD5SUM on my download and far as I can tell I got a good burn. When I installed, I ended up with a failure to install Grub...
I tried it 2 times and got the same error, and sorry, I don't have a log of it. I simply fixed because i noted the 2nd time I tried to install it saw Mageia 4 as installed. By they way, using the install DVD. Not any of the lives. I prefer Xfce or E17 so was going custom.
I just did an update grub...
from my Debian system that is my main. Then it found Mageia 4. I booted into it and surprise! It did boot into it but... no X. So I used the depricated "startx" command and got dumped into Razor qt which I also installed to have a look at. From there, Mageia control center... put a session manager... think it was slim? Whatever it is that is used for Openbox i think. (being lazy I admit I could look in control center now.)
Then I was back in Xfce, etc etc. Restart and... no X!
I did check that part really i did...
WEll I had read the errata and about putting in the actual manual in "40" in Grub 2. SO onward to install media. Install software... then install GRUB.
Then Mageia control panel and I installed Grub 2 to this partition and everything has been normal since...
except my topic. I am not able to get the Nvidia driver to give me 3D effects etc.
It's not really complicated hardware I'm using here... generic Hasee Chinese brand computer. Sorry, been workine here for a few years. GT240 Nvidia Notebook graphics card... but everytime in Control Center when I try to 'set' video... when I test it gives me an error. Why? It installed the Nvidia components it says it needed... anyone have an idea what's missing?
I tried to setup the 3D graphics and it says of course that my system isn't able to suppor it.
I've read through here and there's an issue now with the current Nvidia proprietary driver? How's the open source driver working with this rather simple card then? If it'll do the job how do I switch back to it?
Thanks if anyone can give me some answers...
My initial install of Mageia 4 was a bit plagued though.
1st...


I tried it 2 times and got the same error, and sorry, I don't have a log of it. I simply fixed because i noted the 2nd time I tried to install it saw Mageia 4 as installed. By they way, using the install DVD. Not any of the lives. I prefer Xfce or E17 so was going custom.
I just did an update grub...

Then I was back in Xfce, etc etc. Restart and... no X!

WEll I had read the errata and about putting in the actual manual in "40" in Grub 2. SO onward to install media. Install software... then install GRUB.

except my topic. I am not able to get the Nvidia driver to give me 3D effects etc.
It's not really complicated hardware I'm using here... generic Hasee Chinese brand computer. Sorry, been workine here for a few years. GT240 Nvidia Notebook graphics card... but everytime in Control Center when I try to 'set' video... when I test it gives me an error. Why? It installed the Nvidia components it says it needed... anyone have an idea what's missing?
I tried to setup the 3D graphics and it says of course that my system isn't able to suppor it.
I've read through here and there's an issue now with the current Nvidia proprietary driver? How's the open source driver working with this rather simple card then? If it'll do the job how do I switch back to it?
Thanks if anyone can give me some answers...