# GLEW error PV5.9 on win7

**URL:** https://discourse.paraview.org/t/glew-error-pv5-9-on-win7/7155
**Category:** ParaView Support
**Created:** [May 6, 2021, 12:40am UTC](https://discourse.paraview.org/t/glew-error-pv5-9-on-win7/7155 "2021-05-06T00:40:10Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![lyz](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/l/e47774/32.png) [@lyz](https://discourse.paraview.org/u/lyz)
#### Post date: [May 6, 2021, 12:40am UTC](https://discourse.paraview.org/t/glew-error-pv5-9-on-win7/7155/1 "2021-05-06T00:40:10Z")

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I test Crystal Eyes using PV5.9 on windows7. GPU: nv Quadro P6000

```auto
mpiexec -hosts 3 renderleft rendermiddle renderright pvserver --stereo --stereo-type="Crystal Eyes" CAVE.pvx
paraview --stereo --stereo-type="Crystal Eyes"

```

and I get the error

 ![image](https://discourse.paraview.org/uploads/default/original/2X/c/cdaa9558cf25a2d5b694d807fae6bd345d23960c.jpeg)  
 ![image](https://discourse.paraview.org/uploads/default/original/2X/c/c2e38566a63c4cf3f1baa0a60a1faa5faffe3d16.jpeg)

---

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 6, 2021, 7:18am UTC](https://discourse.paraview.org/t/glew-error-pv5-9-on-win7/7155/2 "2021-05-06T07:18:04Z")

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Are you able to make it work without using mpi ?