Adobe IE Toolbar is gone

We have a five Citrix servers with Adobe Reader and one with Adobe Standard.
All is working very well for most. A couple of people are missing the Adobe Standard IE Toolbar when they log on to the Adobe Citrix server.
It is not only missing but is not shown in the IE Addons at all.

I did some troubleshooting and found that if I deleted my profile for the Citrix server and allowed it to re-create the toolbar showed up again.
What I can't figure out is where the settings are that have changed.
Does anyone have an idea on this one?
This is Xenapp 6.5 on Windows 2008 R2.
Adobe is Standard ver. 10.1.8
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mwalker-mdbAuthor Commented:
The users having the issue were using the 64 bit version of IE. Switched to 32BIT and all is well

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