GTAIV issues, what works for me.

Playing Grand Theft Auto IV I was having the issue of images vanishing after just minutes of gameplay. The more the stuff I had going on, the worse it got. I looked online for the capacities of my motherboard. I found that the native memory I was using, What the manufacture says on the box that my motherboard came with is 667mhz. No where on the box did it signify that I could go any further. So I Googled my motherboard. What I found was lots of people like myself did what I did. We all bough what we thought was the max memory for the board. 2 Gigs of 667mhz ddr2. but others experimented and found that it can handle greater than 800 mhz ddr. So I headed to the electronics store and bought 4 gigs of pc 6400 800 mhz ddr2 memory. Then when I got home, I tried to find teh forums that I saw earlier. By that time I found a handfull sites selling the same motherboard, the specs they had on those sites showed greater than 800 mhz..Dang. but I did the install.
You would not believe the speed increase I gained from this. The game has no lag issues. I stay at 30 fps min, and never have any stutter, never have any vanishing items. just that small step up and doubling my memory, the game plays like a gem.
The canned air in the heatsinks didn’t hurt me . So I think I am well on my way. See you online. I will be at gtaclans.com when I am not actually in game.

Grand Theft Auto IV Cheat Codes

If you need cheat codes for GTA IV, here you go.

CHEAT NAME

CHEAT CODE

Health
Restore Niko’s health.
4825550100
Armour
Give Niko armour.
3625550100
Weapons #1
Baseball Bat, Handgun, Shotgun, MP-10, M4, Sniper Rifle, RPG, Grenades.
4865550100
Weapons #2
Knife, Molotovs, Handgun, Shotgun, Uzi, AK47, Sniper Rifle, RPG
4865550150
Remove Wanted Level
Remove Niko’s wanted level. Blocks achievement “Walked free”.
2675550100
Raise Wanted Level
Add one star to Niko’s wanted level.
2675550150
Change Weather/Brightness
Alters the weather/brightness of the game.
4685550100
Spawn Annihilator
Spawn an Annihilator in front of Niko.
3595550100
Spawn Jetmax
Spawn a Jetmax in front of Niko.
9385550100
Spawn NRG-900
Spawn an NRG-900 in front of Niko.
6255550100
Spawn Sanchez
Spawn a Sanchez in front of Niko.
6255550150
Spawn FIB Buffalo
Spawn an FIB Buffalo in front of Niko.
2275550100
Spawn Comet
Spawn a Comet in front of Niko.
2275550175
Spawn Turismo
Spawn a Turismo in front of Niko.
2275550147
Spawn Cognoscenti
Spawn a Cognoscenti in front of Niko.
2275550142
Spawn SuperGT
Spawn a SuperGT in front of Niko.
2275550168

Be aware that entering cheats may prevent you from getting achievements or from getting 100% completion. DO NOT SAVE YOUR GAME after using these cheats.

From GTAPLANET these guys are always right on it

There is a little more on IGN