I observe a similar behavior und 2009a, when I have opened a VirtualPC to run Matlab6.5 under a virtual XP simultaneously for testing. In addition my browser inserts a ` before special characters like [ and ] in addition.
The solution is easy: I do not expect my machine to work properly, when VirtualPC is active. Another solution is tostart Matlab with the -nojvm flag. Unfortunately the GUI is very lean then, e.g. the editor does not work anymore.
Some parts of Matlab are over-featured, as the ribbon/java/docked IDE, while others look like the early 1990th, like the uitree's and uitable's or the missing strong support of multi-monitor setups.
Sometimes the computer stuff makes me depressive. I hope you get better answers.