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When you click My TV in Windows XP Media Center Edition, you may find that there is a long pause before LIVE TV begins.
Microsoft Windows Media Player may also be slow to respond.
In some cases, you may also notice that %systemroot%\System32\CatRoot2\Edb.log may increase to up to 20 megabytes (MB). Typically, this file is only 5,120 kilobytes (KB).
This problem may occur if the catalog database (Edb.log) file is damaged. The catalog database is referenced by LIVE TV and Windows Media Player. If the catalog database is damaged, there may be delays, and you may experience the problem that is described in the "Symptoms" section of this article.
To work around this problem, follow these steps:
Click Start, click Run, type cmd, and then click OK.
At the command prompt, type the following command, and then press ENTER:
del /q "%systemroot%\system32\catroot2\edb.log"
This command forces the catalog database to rebuild itself.
Service pack information
To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack
To resolve this problem, install the 817287 update. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
817287 Windows Update 643 Error and the Catalog Database
Windows uses the catalog database to validate the authenticity and the integrity of the binaries that are installed. The 817287 update significantly (5 to10 percent) improves the performance of the catalog database in Windows. This update resolves much of the delay that you experience when you click My TV in Windows XP Media Center Edition or when you use Windows Media Player.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.