I find the middle button is generally the first to fail.
They tend to degrade over time, missing a click now and then, versus abruptly stop working.
Try a new mouse.
Several things may cause laggy model performance.
SketchUp relies heavily on the graphics card, its driver and the single core speed of the CPU.
It helps us help you if we know what hardware you’re working with.
Kindly fill in the missing hardware information in your profile.
Modeling technique has a tremendous impact upon model performance.
No amount of fancy hardware can compensate for poor modeling technique.
Windows 7 premium PC
Intel(R) Core ™ i3-2130 CPU @ 3.40GHz
8*GB RAM
64 bit OS
Graphics Card NVidia GForce 8400 GS Graphics memory 4095MB, Video memory 1024MB Open GL 2.1
The mouse is only a few months old and only fails to work on SketchUp.
I work on quite comeplex construction models and only have the groups on display that I need to work on at that time.
Presing and holding the mouse wheel only works for orbit part of the time.
Your specs doen’t seem to match the 8600 GS - original spec is 256 MB graphics memory - that could cause plenty of lag - may appear to be a missed click.
An i3 CPU has very little internal memory (cache) which also causes lag.
Is your graphics driver up to date? Nvidia release new versions every few months.
SketchUp 2017 requires Open GL 3.0 - you could check what the minimum is for SU 2016.
In summary your PC hardware may be to blame - can you upgrade?
Other ideas…
• How old are the batteries in the mouse?
• Is anything blocking the Logitech USB receiver?
• Is there another input device in play, say, a 3D navigator still attached to the system?
Updated Setpoint - no effect
Batteries fresh and the reveiver is max 500mm from the mouse.
‘O’ shortcut works perfectly. Mouse starts off okay and then works intermittently.
Probably the mouse. I’ll swop under warranty.
Thanks for all your advice.