. I was able to get the cursor to the Force Quit icon, clicked on it, got the window saying to click on a window to force the application to quit, but at that point the cursor was completely frozen and wouldn't move to enable me to follow the instructions. So am again forced to hit the Reset button and re-boot to get things working again, which is what I was having to do before and really don't like to do.
One thing that may be complicating things is that the offending program is a Windows program running under Wine. And to make things even crazier is that I've tried the same thing within that program that causes it to lock up in Mint, I've tried it in Ubuntu 9.04 and PCLinuxOS 2009.1 and the program operates normally and doesn't lock up !!!!