# Actuators/sensors problems

**URL:** <https://community.factoryio.com/t/actuators-sensors-problems/120>\
**Category:** Support\
**Created:** [March 21, 2020, 7:43pm UTC](https://community.factoryio.com/t/actuators-sensors-problems/120 "2020-03-21T19:43:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![alsase3](https://avatars.discourse-cdn.com/v4/letter/a/ccd318/32.png) [@alsase3](https://community.factoryio.com/u/alsase3)\
**Post date:** [March 21, 2020, 7:43pm UTC](https://community.factoryio.com/t/actuators-sensors-problems/120/1 "2020-03-21T19:43:53Z")

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I just installed the trial version, and I can’t activate or deactivate the actuators/sensors when I click on the variable name. The menu that you see in the image doesn’t open

![Actuators](https://europe1.discourse-cdn.com/flex017/uploads/factoryio/original/1X/5f2b16e9f540992c6cff8d4b5f1b937020914dae.jpeg)

Could someone help me?

Edit: (22/03/20)  
A video where you can see that I can’t click on the variables. It also seems as if the variable names are moved.

![video](https://europe1.discourse-cdn.com/flex017/uploads/factoryio/original/1X/20229015983c63563bf653af5f520587320001e0.gif)

Thank you!!

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**Author:** ![brunovgr](https://dub1.discourse-cdn.com/flex017/user_avatar/community.factoryio.com/brunovgr/32/12_2.png) [@brunovgr](https://community.factoryio.com/u/brunovgr)\
**Post date:** [March 23, 2020, 11:30am UTC](https://community.factoryio.com/t/actuators-sensors-problems/120/2 "2020-03-23T11:30:29Z")

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Hi @alsase3,

Can you check if the resolution scale is set to 100%? There is a bug when using a resolution scale different than 100% which causes 3D tags to not detect correctly the mouse cursor position.

 ![image](https://europe1.discourse-cdn.com/flex017/uploads/factoryio/original/1X/cdac15a36e0619d78e6ebd8e0f64e28b7d0dce3e.jpeg)

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<div class="post-metadata">

**Author:** ![alsase3](https://avatars.discourse-cdn.com/v4/letter/a/ccd318/32.png) [@alsase3](https://community.factoryio.com/u/alsase3)\
**Post date:** [March 23, 2020, 12:30pm UTC](https://community.factoryio.com/t/actuators-sensors-problems/120/5 "2020-03-23T12:30:00Z")

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That was the problem!!

Thank you vey much!