Consider the following scenario:

• You are using a computer that is running Windows Vista, Windows Server 2003, or Windows XP.
• You try to print to a Line Printer Remote (LPR) printer by using LPR port monitor software or TCP/IP port monitor software.

In this scenario, you experience slow printing performance.

When you try to access a Web Distributed Authoring and Versioning (WebDAV) share for the first time on a Windows Vista-based computer, you experience a long delay.

Additionally, you may experience the long delay during a later attempt to access a WebDAV share when the connection to the WebDAV workspace is closed.

Note: If the connection to the workspace remains, you will not experience the long delay when you access the WebDAV share.

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Apparently some users think there is a link between slow network performance, and playing audio on a Vista machine. Keep reading →

You try to open some Web sites in a Web browser on a Windows Vista-based computer. However, you may experience slow Internet connectivity, and you may receive the following error message:

Page could not be displayed.

On a Windows Vista-based computer that uses Universal Host Controller Interface (UHCI) USB controllers, a USB device takes a long time to resume from “selective suspend” mode. Usually, the USB device takes 500 to 1,200 milliseconds (ms) to resume from this mode.

Therefore, USB devices that are attached to the UHCI USB controller may take a long time to respond. For example, assume that you are using a fingerprint reader to capture user fingerprints. The fingerprint reader is attached to the UHCI USB controller on a Windows Vista-based computer. If the fingerprint reader is in “selective suspend” mode, the system may not capture the fingerprint after you swipe a finger on the receiver of the fingerprint reader. This behavior occurs because the fingerprint reader takes a long time to resume from “selective suspend” mode. You must swipe your finger again for the fingerprint reader to capture the fingerprint.

Note: Typically, it takes about 20 ms to resume from “selective suspend” mode when you use either of the following configurations:

• Microsoft Windows XP-based computers that use UHCI USB controllers
• Windows Vista-based computers that use Open Host Controller Interface (OCHI) USB controllers

The information in this article applies to the following configuration(s):

• Catalyst Vista RTM driver
• Radeon® X1600 series
• Radeon® X1300 series
• Windows Vista 64bit Edition

Symptoms
On some configurations, the Catalyst Control Center may take a longer than expected amount of time to launch under the Windows Vista 64bit Edition operating system.

Consider the following scenario:

1. You configure the Windows HotStart feature in Windows Vista to start a program directly from the system startup process.
2. The computer is asleep.
3. You press the access button for the program on the front panel of the computer or on the infrared remote control.
4. The computer wakes up.

In this scenario, the program does not start as quickly as expected. The program may take as long as a minute to start after the computer wakes up.

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When you try to use a Windows Vista-based computer behind a firewall device, network connectivity may fail. When network connectivity fails, you may see the following symptoms:

• Programs may respond slowly.
• Programs may stop responding.