For example, if "Always ask me where to save files" is selected, select "Save files to" and choose a download folder, then go back and re-select "Always ask me where to save files".
 If you still have problems you can restore the default Firefox download folder settings as follows: Enter about:config in the address bar. Scroll through the list ( or type browser.download in the Filter box) and reset any of the following preferences that have a user set status (right-click on the preference and click "Reset"): You can then change back to your preferred download folder settings, if you wish, in your Firefox options/preferences. To fix this problem on Mac OS X 10.4 and earlier, open Safari Preferences and check the "Save downloaded files to:" setting.
Firefox will automatically download files to a default location (e.g., to the Desktop or, depending on your operating system, to a special "Downloads" folder) unless you've selected a different download folder or you've set Firefox to ask where to save every file.
When a user logs on to a computer, a series of steps begins that makes up the authentication process.
Authentication validates user identity and defines resources that a user can access.
This article explains how to install a new version of your setup project using the Windows Installer update mechanism.
When you need to build a new version of your setup project or ship fixes to it, it’s tempting to rebuild the project and try to install the MSI file.
Doing so, however, typically launches a message box indicating that another version of the product is already installed and directing you to the control panel to uninstall it.
The primary reason for this is that the Product Code Guid identifies the product to Windows (see the setup project properties in Figure 1).
Since products are identified by the Product Code Guid, changing the Product Code creates a new product.
That is, the old product is uninstalled as you install a new one.
Related Information Using This Appendix Installing and Running Troubleshooting Tools Disaster Recovery Tools Application and Service Tools Remote Management Tools Disk and Maintenance Tools System File Tools Networking Tools Additional Resources This appendix describes the troubleshooting and maintenance tools available in Windows XP Professional.