# Dicom only visible in zoom

**URL:** <https://discourse.slicer.org/t/dicom-only-visible-in-zoom/7812>\
**Category:** Support\
**Created:** [July 30, 2019, 12:44pm UTC](https://discourse.slicer.org/t/dicom-only-visible-in-zoom/7812 "2019-07-30T12:44:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Smithbones](https://avatars.discourse-cdn.com/v4/letter/s/a88e57/32.png) [@Smithbones](https://discourse.slicer.org/u/Smithbones)\
**Post date:** [July 30, 2019, 12:44pm UTC](https://discourse.slicer.org/t/dicom-only-visible-in-zoom/7812/1 "2019-07-30T12:44:09Z")

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Hello,  
I have been trying to view DICOM CT scans -I have imported the files but when I load them to view the files show on the left as being live but the actual views (R,Y,G) are just black with nothing visible. However, when I click ‘show zoomed slice’ I can see zoomed in sections of the CT images and move through them in the small box on the bottom left of the screen,  
Any suggestions much appreciated,

Many Thanks

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 30, 2019, 1:04pm UTC](https://discourse.slicer.org/t/dicom-only-visible-in-zoom/7812/2 "2019-07-30T13:04:59Z")

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This typically happens when your graphics card does not meet minimum requirements (your computer is more than 6-8 years old). See some more details [here](https://discourse.slicer.org/t/images-cannot-be-seen-after-loading-data/6154/4). If upgrading your graphics card drivers does not help then probably you need to upgrade your computer. If your computer is a recent one then send us the application log (menu: Help / Report a bug).

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**Author:** ![Smithbones](https://avatars.discourse-cdn.com/v4/letter/s/a88e57/32.png) [@Smithbones](https://discourse.slicer.org/u/Smithbones)\
**Post date:** [July 30, 2019, 2:08pm UTC](https://discourse.slicer.org/t/dicom-only-visible-in-zoom/7812/3 "2019-07-30T14:08:14Z")

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Dear Andras,

Very many thanks for coming back so quickly on this –much appreciated! Will start pestering my employer for a better PC!

Best Regards,

Martin