A file called 'commandline.txt' can be helpful if you get the the following error message under Graphics in the GTA 4 menu:Warning: Your graphics settings ar. On my pc it adds hundreds of MB so i put in -availablevidmem 20.0, and i now have something like. A way to fix the annoying way under specs vram in GTA IV is to create a text document in the GTA IV installation folder (ie: C: Program Files (x86) steam steamapps common GTAIV GTAIV) called commandline.txt and put the following text in that document: -availablevidmem 2.0 and then save it.