Forums Bug Reports Laptop trackpad scrolling way too fast

I honestly don't know if there is a way for you to replicate this bug other than by buying the same model of laptop I have, but I wanted to make the report all the same.

I have a Dell XPS 9315 laptop running Windows 11 24H2. The touchpad is listed in Device Manager as a 'HID-compliant touch pad' and appears to use a generic Windows driver. There does not appear to be any proprietary mouse or touchpad software in use. In mIRC 7.81 the two-finger scrolling gesture scrolls at extreme speeds, somewhere on the order of 10x more than is expected. It is just incredibly sensitive and near impossible to scroll just a few lines like you would using a standard mouse wheel. mIRC is the only program that behaves in this way. The "Lines to scroll at a time" slider in Windows settings is at the default setting of 3. Lowering it to 1 makes things a little more manageable in mIRC but it's still too fast to be precise in terms of how much you actually want to scroll. This high rate of scrolling is also present in the mIRC scripts editor window, but does not appear to be in the notify or control lists of the Address Book window.

Thanks for your bug report. I was indeed able to reproduce this issue on a touchpad here. It was due to mIRC not handling how a touchpad sends a WM_MOUSEWHEEL delta scroll value that needs to be accumulated, which is different to how a mouse sends the same message. I have made a change to the next beta that should hopefully resolve the issue for you.