A mere day after release, countless bugs and problems have plagued buyers.
* The crash-to-desktop bug is rampant, a "fatal zlib20 error". No known solution yet.
* Securom must be running at all times while the game is running. Closing it results in the game closing too.
* SecuROM will often crash, resulting in your game not starting at all.
* The reason the menu screen was black for me for so long is because it must download a file every time you start the game, since the menu background is actually an online updating news page.
* The newest Geforce Drivers: version 180.48, are not compatible with GTA IV.
* The Windows Live update supports Vista 32bit only. If you have Windows Vista 64bit, you can not play.
* The game does not support, nor recognise, SLI card set ups of any of the Geforce 8600 or 8800 card series.