Sounds like a memory leak problem. You can check this by bringing up your Windows Tak Manager (cntl-alt-del) and looking at the processes tab. Find the Process labeled Vue5 and look at the number of GDI objects (You may have to select "View - Select Columns- GDI Objects" ). If you see a large number here e.g. several thousand or more and growing as you use Vue, then it's a memory leak. Memory leaks were a big problem on Vue 4 - hopefully this will will be corrected soon.