Well, this is an issue which has certainly been driving CRM team member Ian up the wall and prompted him to find a fix. If you'd like any more information, please ring or email me.
It started the very moment that we applied CRM 2011 Rollup 12 to
our development environment. While working on a new CRM for a
customer, I had a scenario where a Virtual Box Windows 7 operating
system was generating a script error on just about EVERY mouse
click on the site navigator, yet on my host Windows 7 operating
system, no errors were being generated.
Other team members weren't encountering anywhere near the volume
of errors I was seeing.
Familiar Script Error Dialogue:
"Could not complete the operation due to error
I tried all the usual things like emptying IE temporary files,
IE compatibility mode and other IE versions. No difference.
After sending hundreds of error reports to Microsoft, I searched
for hints as to what could be causing this strange behaviour.
The solution is very easy to apply, but unfortunately looks like
a bug as you have to disable a great feature in CRM - IM
The reason? If your operating system does not have Lync or other
IM software present (Lync is the only one I tested anyway) the
customer record grids fail to load correctly and the error is
Turn off the IM Presence feature and your browser will operate
fine, no errors.