Many people have reported differing results while using LiveMeeting & WebEx. If you're an attendee of a meeting, there's generally no problem, howevever, if you choose to share an application or share your desktop, one typically winds up with slow cursor response or the spinning pizza of death. I've personally had this problem in versions 1862 through 3188, but there IS a workaround. The problem seems to revolve around these applications interaction with the cursor. To work around the problem, go to parallel tools and disable the mouse tracking. You may, unfortunatley, have to also disable coherence, but you'll be running smoothly. While I'd prefer a fix, the workaround has allowed me to continue my client presentations.
Webex I don't know about Live Meeting. Personally, I have not used it. Webex has not been an issue for me in Build 3150. I used it today as a presenter. Maybe something broke in later releases? I have been VERY hesitant to go beyond 3150 because it has been stable for me.
I've had this problem in LiveMeeting, but when I go into the tools, the option to turn off mouse synchronization is greyed out.
To get to the mouse synchronization, you're going to have to de-select coherence. Then, mouse synchronization becomes a selectable option