On Tuesday, 28 August 2018 06:43:03 UTC-4, Gary Harnagel wrote:
On Monday, August 27, 2018 at 1:31:04 PM UTC-6, Rodney Pont wrote:

On Mon, 27 Aug 2018 10:49:04 -0700 (PDT), Gary Harnagel wrote:

Thanks, Rodney. Yes, there are two pairs of screws in the
back rim up 60 degrees or so from the bottom on each side and
the right distance apart to fit the mount. I assumed they
were for that purpose and tried removing them but they wouldn't
budge. I was afraid the heads would twist off so I desisted.

They shouldn't be so tight, should they?

I don't recall any problem undoing mine. I know screws can sometimes
seem tight if you don't have the correct size screwdriver.

--
Regards - Rodney Pont

I got an email from tech support and they said to unscrew those two
screws just as you said. I'll give it another try. Thanks.

Gary

Use the right size driver to avoid stripping. Unfortunately, Americans embraced the Philips head screw instead of the Robertson and we've suffered for it ever since.