Android Market Stopped Working

> **Possible Duplicate:** > [Sometimes Market update get stuck downloading, how can I cancel?](https://android.stackexchange.com/questions/1204/sometimes-market-update-get-stuck-downloading-how-can-i-cancel) I have Android 1.6 on original G1. I tried to install Last.FM application and it failed. Since then I always see Last.FM there in process of installation and it can't be canceled or removed or anything. And what's worse: then installation of new application stopped working at all. Coming back always after a while with "[application] failed to download. Try again later". Any idea, how to "unblock" the market again?