CPU overheating because of Delphi IDE

Question

I am using Delphi 7 but I have trialed the Delphi 2005 - 2010 versions.

In all these new versions my CPU utilization is 50% (one core is 100%, the other is \"relaxed\")

Answer 1

SOLUTION

The 100% CPU utilization problem is caused by a Delphi button (in Delphi's toolbar)!
I like to switch between the new full screen and old Delphi-7-like IDE. There is a button called "dock edit window" that does this. Every time I installed a new version of Delphi, I configured the look of the IDE and put that button handy in the toolbar. After I remove the button, everything works fine.

Conclusion, don't drop this button on your IDE toolbar.

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Update 2010
I discovered a similar issue when I open a DPR file in IDE. No solution for this, though.

Update 2011
Yet another similar Delphi bug (solution provided by @Warren P) Delphi XE takes one full core (100% CPU utilization)

Update 2015
I have found the button that was causing the above mentioned issue (100% CPU utilization while editing the DPR file) - It was the 'Use unit' button.