This thread is about solving most common FW problems. Other mods might want to add tips as time goes as I'll only make one right now
Problem 1: FrostWire doesn't download file upon double clicking on a search result.
Workaround: Go in the menu Options-> (Preferences on os x), select any panel and click on the "Restore Defaults" button in the lower left. Reattempt to download the file from results and read carefully the popping dialog.
Problem 2: Various problems, from FW does not start up to FW has speed problems and download corruption. (this might be due to preferences corruption)
General Workaround: Delete your FW preferences folder:
Emplacement of themes directory for:
Windows: C:\Documents and Settings\*yourusername*\Application Data\FrostWire\themes Note: Application Data folder is hidden by default, you have to play with the menu Tools -> Folder options in Windows Explorer
Mac OS X: /*yourusername*/Library/Preferences/FrostWire/themes/
Linux: ~/.frostwire/themes/