I don't know how to explain the problems with it, but I'll give it my best shot.
For the past few months now, it feels that my mouse has taken a huge crap on my desk and refuses to do anything correctly after that.
For instance, it doesn't know that when I click down on the left trigger ONCE, I left-clicked once. Therefore, I'm always opening 5-6 instances of whatever I'm clicking on (because I do need 6 chrome browsers open with one click ). Strange it doesn't happen with right click.
Moreover, when I'm highlighting selected text, it doesn't seem to highlight correctly.
I'll try to show you what happens frame by frame as I try to highlight one sentence (keep in mind that I'm showing you, this isn't happening in real time, lol).
[Anything inside these brackets is something highlighted]. (example)
Again, I've only clicked down once while trying to highlight, holding that click:
*Clicks down left click*
[This] is an example sentence showing what happens.
[This is a]n example sentence showing what happens.
This is a[n exa]mple sentence showing what happens.
This is an exa[mple s]entence showing what happens.
This is an exaentence[mple s] showing what happens.
This is an exaentencemple s [sho]wing what happens.
This is an exaentencemple s wing[sho] what happens.
This is an exaentencemple s wingsho [what ]happens.
This is an exaentencemple s wingsho hap[what ]pens.
This is an exaentencemple s wingsho hapwhat p[ens.]
*Lets go of left click*
It somehow can't decide what it wants to highlight, then grabs a random part of my sentence and moves it over to the end because it realizes I'm holding down the left mouse button. Then it totally forgot I was holding down the mouse button, double clicks, and moves some text over. WTF!
This makes it a real b**ch when trying to add [i] or some kind of basic forum code to my posts.
Every issue I have with this mouse adds a drop of water to a cup.
When that cup is full, that means my mouse will be throw against a wall until it shatters into unidentifiable pieces.
It's a Logitech USB mouse, this is the first time I've had such a hard time with one.