my wireless optical mouse has problems dragging/highlighting

change the battery

>>254566
i did, still the same

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replace these buttons

>>254571
like i said, there are no screws at the bottom. seems to be glued and isn't easy to pull apart. should i force it open? :\

>>254576
open battery compartment. rip out label stuck inside. remove screw. pull off top.

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>>254584
oh thanks i didn't know that's where it was! it looks like this on the inside. there was a bit of dust so i cleaned it but it still gets stuck when i try to drag anything. it's just the left click that's broken btw. you're saying i need to replace this black box thing?

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>>254593
if you don't use the middle button, just swap them.

>>254595
no middle button because the wheel's connected to the right click instead. i put some tape between the box and the clicker and that seemed to fix it. i guess it was missing a few micrometers of reach? anyway thanks a lot for the help. :)

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>>254597
its wearing out. eventually it will stay stuck down. you need to replace it.

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>>254598
i don't have an old mouse to get parts from. could i just adjust the metal spring inside? do i need to remove the switch from the base?