In order to resolve two widely-reported issues with Second Life 1.8.2(6), we have just posted an optional update.
Anyone who has experienced a problem with the Graphics Card Memory setting showing less memory than what you know to be available should upgrade to this new version immediately. Please see the release notes below for more information:
Second Life 1.8.2(7) Jan 26, 2006
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* Fixed a crash when using the Debug > Show Updates menu item
* Changed behavior when Graphics Card Memory cannot be detected
** Increased the default setting to 128MB when video card's memory cannot be detected.
** Memory setting can be altered as needed based on actual setting
*** WARNING: setting the value to more memory than is available can cause extremely poor performance!