Thanks for the response. First of all, I need to say that the Windows program doesn't have this high resource usage phenomenon under Windows. It just happens under Wine. > If that doesn't help, try the 'top' utility: > - What does it show? > - In particular, which processes are active during the change of focus? > - What does it say about swap space usage? > "top" shows that this particular program (called special.exe) taking a lot of CPU and memory during change of focus as I mentioned originally. It doesn't use much swap space as my 4GB RAM is not depleted. I will try to use sysstat, but I am not to sure what to look for. I suspect more that it has to do with Wine's handling of GUI and graphics. Anyone please advise some specifics about it. Many thanks.
