Graphic card problem

I have i7-2630QM, 6GB DDR3 Ram, Nvidia GeForce GT 55M with nvidia optimus technology. Beside Nvidia GeForce I also have Intel HD Graphics.
That being said, I’ve downloaded GTA IV and tried running it. But it only runs on 800×600 and I can’t change that.
Error I get:
your graphics settings are near, or exceed, the suggested resource limits for your system. It is recommended that you reduce your graphics settings in order to run the game optimally
Normally Nvidia optimus should switch between Intel and Nvidia when playing the game, but that doesn’t happen apparently… Any suggestions on how to fix this?
Thnx in advance
Answer #1
Go in nVIDIA control panel, and where you have 3D settings, change to auto select to nVIDIA graphic… Apply and that is it
Answer #2
Hmm, guess I was wrong… I still can’t change the game resolution…. Thnx for the reply though
Answer #3
KILLAH replied: Hmm, guess I was wrong... I still can't change the game resolution.... Thnx for the reply though
Well I have the same laptop so I know what I’m talking about..
Cheers!
Answer #4
In that case, can you run GTA IV? normally I should be able to run it… without any problems… but it seems that a lot of people are having this problem…
Answer #5
KILLAH replied: In that case, can you run GTA IV? normally I should be able to run it... without any problems... but it seems that a lot of people are having this problem...
I’m not addicted gamer at all but I’ve tried Deus Ex : Human Revolution and it runs in HIGH (Maximum) settings… So I guess that GTA IV will run just fine..
Answer #6
Tnx for the replies.
One more question, how do I know that the settings have been changed (from intel to nvidia) when playing the game?
Answer #7
the game wont work at all on the intel graphics so that’s a clue lol.
Answer #8
Solved!
Question: I am using a GTX580, HD6990, or other video card with more than 2GB of
dedicated video memory and GTA IV is treating my game as if my system were under
spec by restricting my graphics options.  What can I do?
Answer: We have heard some reports that certain video cards with more than 2GB of
video memory may be causing GTA IV to believe the system is under specification
even though the computer is powerful enough to run the game with higher settings.
We are in the process of looking into the issue and will update this page, if we
can confirm the problem, as soon as we have more information about workarounds or a fix.
Possible workaround:
Create a text file named ‘commandline.txt’ in the main GTAIV folder and put the
following statement inside it:
-availablevidmem 2.0
If that doesn't work, try increasing the number to one of the following.
-availablevidmem 3.0
-availablevidmem 4.0
-availablevidmem 5.0
-availablevidmem 6.0
etc.
Note that these command lines can be added immediately after the last
quotation mark in the target parameter of the program shortcut.
Locate the shortcut to the video game on your desktop.
Right click the file and select Properties.
Under the shortcut tab, you will see an area that says Target, this will
list the exact location of the file within quotation marks.
Modify the Target adding the command line variables after the last quotation mark.
Press apply and start your game via the shortcut.
If you are using Steam, please try:
Properties of game>Launch Options>Add: -nomemrestrict -norestrictions
If the issue still occurs, please be sure to attach a DxDiag file to your ticket
and also let us know how much VRAM is detected by GTA at the bottom of the Graphics page.
thnx all