@jhughes-scasd-us
Could you provide snapshot of this screen?

@vedorh
I'm not sure what you mean by a missed touchscreen driver, but IFP's touch does not require a separate driver, so if your current touch is not working, it may be a problem with the touch frame and you will need to call a service technician to help resolve it.

@vedorh
You can call up Debug Menu by pressing “INPUT 991” key on the remote controller and select "Init TV" to reset system.

@igarland
Laptop can be written and synchronized on the ViewBoard via HDMI+touch cable or vCastSender's touch feedback function.
But for other tablet devices it is currently not supported.

@noelmm
Sorry, I'm not clear about your description, could you provide some screenshots for reference?

@emcmahon-skokie68-org
Hi Erika,
Since the Amazon Prime video content is protected, it can't be viewed through screen mirroring and is currently only available through apps.

@stéphanelf
Hi Stéphane,
Thanks for your info, we'll verify again for the "presentation mode".

@stéphanelf
We've tried replicating the issue you mentioned, but still can't replicate the symptoms. Can you please try to verify this issue through the mobile hotspot connection to ensure that the network is ok?

@alawil78
The two models are only different the panel.

I think the firmware version is too old, please download the latest firmware then try again.
https://www.viewsonicglobal.com/public/products_download/software/ifp/ifp50/IFP7550-2_20210317_161352.zip