This url you gave is the laptop version... If unable to use the software manual installation will be required( Acer laptops are known for this crap, especially MXM style GPU's i have 3 acers(, i had to mod the VBIOS and SBIOS on every bloody card and mobo) and manually install drivers on each computer... guess its not just me, OK! Lets do it!
1. Press windows key and R at the same time to bring up a run command
2. Type in DEVMGMT.MSC and press ok (this will bring up device manager)
3. Right click on your video card device and click update driver... Go to "BROWSE MY COMPUTER FOR DRIVERS" or some such bs, Then click "Let me pick from a list of device drivers on my computer
3.Click "HAVE DISK", now browse to where those device drivers were extracted... Default will be "C:\NVIDIA\DisplayDriver\275.33\Vista 64-bit\International\Display.Driver" and then choose an INF... Depending on how vista is setup it may only show one driver, or a multitude(if it shows alot, you may have to do this process a few times to sort out the microsoft/manufacturer bs drivers... focus on driver version under properties of your device in device manager) If this is successful hopefully your SC2 problems will be resolved
If this doesnt work we are going to have to get you some hax0red drivers(this happens alot for laptops... more than you can imagine) that will ignore the nvidia... blah blah blah, not found... blah blah... I had to do this on one of my dells.. not on a acer though, If so i will track one down for ya, they build them quite regularly, and yes its 100% safe if its the drivers for the product you need... it just cuts out the bs compatibilty check that can fail for a number of reasons