If you notice it please open a trouble report. Bubble Help gets pulled off of SofTutor. We have noticed this when running Windows NT using certain video drivers. The bubble help will usually disappear within a few seconds. If we get a driver to fix this we will post it on our internet server.
Bottom controls seem to flash.
On slow systems this flash is more noticeable. The scroll bar and time remaining in the current video clip gets updated every second or longer on slow systems. This update may cause the tool bar to shift up and down slightly or pulse on slower systems. The time remaining seems to jump more than 1 second intervals. The speed of your system will determine the interval on fast systems the interval will be closer to 1 second and on slow systems it could be 5 seconds.