upgrade to 5.621 from 5.601; application hangs on startup

[jtmoon2008]

Installed Winamp 5.621.
The application starts. I selected a skin (bento). The notification bar popup shows new track "Llama Whippin' Intro". Then Winamp just hangs. It remains greyed out (I think Windows7 does the grey out) and unresponsive.
Forcing Winamp to close requires a wait of about 10 minutes (I use ProcessExplorer to kill process. Then wait 10 minutes and Winamp if finally killed).
Had prior version Winamp 5.6*somthing* which I uninstalled before installation of Winamp 5.621.
I recently updated my Windows7 machine (the Windows Update feature).

Windows 7 reports "Winamp is not responding".
Crash data:
Description:
A problem caused this program to stop interacting with Windows.

Problem signature:
Problem Event Name: AppHangB1
Application Name: winamp.exe
Application Version: 5.6.2.3173
Application Timestamp: 4e1b6f92
Hang Signature: 535b
Hang Type: 0
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 1033
Additional Hang Signature 1: 535b65009ee607b9126bdf8e55485181
Additional Hang Signature 2: 1c74
Additional Hang Signature 3: 1c749a332496dc736e680cb3150400f9
Additional Hang Signature 4: 535b
Additional Hang Signature 5: 535b65009ee607b9126bdf8e55485181
Additional Hang Signature 6: 1c74
Additional Hang Signature 7: 1c749a332496dc736e680cb3150400f9

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I'm reporting this so Winamp developers might look into it.

-J_Tom_Moon_79