Try the following:
lxpanel>PCManFM>Edit>Preferences>General
Uncheck first box under 'Behavior' if you don't like single click.
I have been using a double-click action on the mouse for well over twenty years (Amiga, Mac, Wintendo, SunOS, Linux (KDE and Gnome).
Knoppix seems to want a single-click to open files and icons in the LXDE file manager.
I googled and tried to find the setting in preferences but cannot. I did see this very old thread - http://knoppix.net/forum/threads/457...on-desktop-etc. - but the solution doesn't seem to be relevant any more.
Any help?
Try the following:
lxpanel>PCManFM>Edit>Preferences>General
Uncheck first box under 'Behavior' if you don't like single click.
TP-Link 24-Port Gigabit Ethernet Unmanaged Switch Desktop/Rackmount TL-SG1024D
$69.99
CISCO MERAKI MS120-24P-HW 24-PORT GIGABIT CLOUD MANAGED PoE SWITCH - UNCLAIMED
$103.74
New In Box BNIB Cisco SG300-10 - 10-Port Ethernet Gigabit Managed Switch S23
$119.99
Fortinet FortiSwitch FS-124D-POE 24 Port Gigabit Ethernet Switch UNREGISTERED
$99.97
NETGEAR GS108 ProSafe 8-Port GbE Unmanaged Switch w/ Power Adapter
$14.99
Dell X1026P E11W 24-Port PoE Smart Managed Gigabit Ethernet Switch 2X SFP
$25.00
Dell X1052P Series 52-Port Gigabit Rack Mountable Managed Network Switch
$30.00
New 10/100 Mbps 8 Ports Fast Ethernet LAN Desktop RJ45 Network Switch Hub
$11.49
Dell X1018 X-Series Smart Managed Switches 16-Port Gigabit 2-Port SFP Switch
$42.00
Loocam Gigabit PoE Switch 8 Port 96W 2 Uplink Port Unmanaged Ethernet Switch
$49.99