I've experienced a non-critical bug in Free Download Manager on Windows 7 Home x64:
When choosing the destination folder for a download in the Download dialog, entering a wrong path (e.g. a nonexisting folder) causes FDM to display a "Disk Space" value of zero. Entering a valid path reverts the reported available space to the right value.
This may alert some users, which may think to be running out of space on the HD, while there may be plenty of room for the downloads.

System specs:
O.S: Windows 7 Home Edition - x64 - it-IT
CPU: Intel Core i5-4460 "Haswell" - quad-core
HDD: SATA3 TOSHIBA DT01ACA200 - 2 TB
FDM: Version 5.1.38.7312 (79f26aa) - language: it-IT

Hope this helps improving FDM.

Lorenzo De Marco
Ledom Software

This overzealous free space checking may be very annoying when downloading large torrents (or importing unfinished torrent download).
Example: You have 100 GB torrent package completed in 90% (that is - 90 GB downloaded, 10 GB missing) and you have 20 GB free space on your download partition. When you try to recheck hashes for downloaded torrent pieces, FDM will soon refuse and display "Low disk space" error message. You may retry rechecking many times with no success before you reach 80% checked…