Yesterday we called Take2 tech support for CivIV and talked to a very knowledgeable person about our problems with getting a video memory error after patching to 1.52. Apparently they have been having a number of people with problems using the Intel Extreme Graphics Chipset. After a very lengthy discussion and provision of much data about our particular PC and its Video Memory/Intel Extreme Chipset, progress was obtained! The following changes resulted in 1.52 running perfectly on our PC (Vaio with 2.0G Ram, 224 MB video ram: Double check your "updated" CivIV ini file to make sure it was updated to the version with the memsaver option. Ours was not. If not, delete this file, reboot, and the program will then install the new CivIV.ini file. The file is located in "Your"documents/My games/Civ IV folder. (The file is named CivilizationIV Configuration Settings) Open it and look to see that it contains the memsaver option. Set memsaver to on in CivIV ini file, using the memsaver = 1 setting Turn off Autosave in the same ini file, using Autosave interval = 0 Save the file, and exit the MyGames folder. Reboot Launch CivIV In the CivIV program advanced/options menu, set the graphic quality to Medium, from the default High setting. Close out CivIV Reboot computer Relaunch Civ IV The program now works flawlessly!! The key, and final step which got everything working was the removal of the autosave feature. Not sure why, but it works! Just remember to manually save often, if you follow this procedure.