# Vray RT GPU not working

**URL:** <https://forums.chaos.com/t/vray-rt-gpu-not-working/37719>\
**Category:** Issues\
**Created:** [June 28, 2011, 12:10pm UTC](https://forums.chaos.com/t/vray-rt-gpu-not-working/37719 "2011-06-28T12:10:22Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Zdravko](https://avatars.discourse-cdn.com/v4/letter/z/ba8739/32.png) [@Zdravko](https://forums.chaos.com/u/Zdravko)\
**Post date:** [June 28, 2011, 2:54pm UTC](https://forums.chaos.com/t/vray-rt-gpu-not-working/37719/2 "2011-06-28T14:54:54Z")

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Could you please try to install older nVidia drivers (form March in example) and let us know if the problem persist.

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