Winamp Pro downgraded after updates

[emacee1701]

I see that threads about similar issues have been posted.
http://forums.winamp.com/showthread.php?t=338847
forums.winamp.com/showthread.php?t=338352
http://forums.winamp.com/showthread.php?t=337709

In my case, I did successfully purchase the upgrade to Winamp Pro. However, after the last two updates, I lost Pro and the app reverted the free version. If I touch "Equalizer" I get the upgrade to Pro offer. If I touch the upgrade button, I am told I have already purchased the item or my purchase is pending. But the app won't unlock the Pro features. The only way (I've found) to get back the Pro version is to uninstall and reinstall (then the app upgrades itself when I touch Equalizer). But twice Winamp for Android has gone back to the free version after upgrades.

All the reported problems seem to have in common some issue with the upgrade feature recognizing Pro has been purchased but not upgrading the app. This started occurring for me about two or three upgrades ago. Prior to that, Android Market did routine upgrades with no problem.