Hi,
When your Helix starts to do weird, and unexpected things, then the first thing to try is a Factory Reset.
Reset Options
Helix Floor/LT
Button Combination
Description
2
LED light Fun
3 & 4
Test Mode
5 & 6
Global reset
7 & 8
Reset setlists to factory, Keep IRs
8 & 9
Reset setlists to factory, Clear IRs
9 & 10
Reset setlists to factory, Global reset, Clear IRs
10 & 11
Upgrades existing presets to latest format
11 & 12
Clear current preset
5 & 12
Clear setlists, clear IRs, Return system settings to default
6 & 12
Safe boot mode
To use Reset Options:
Power off the Helix
Hold the desired button combination
Power on the Helix
Release the button combination
Please note: Buttons are numbered from top left to bottom right.
Also, USB connections can be a world of voodoo and can be very temperamental - never use a USB hub (Note: some USB ports on the front of PCs can act as a hub). Try connecting to a USB port on the rear of the computer, which is more likely to be connected directly to the motherboard.
Hope this helps/makes sense.