Projucer problems

Having constant Projucer issues with 4.2.3 on Windows 7 64 bit pro, since I downloaded it.
None of the right click menus will work. Try to add new files and no select box comes up.
It will work for a while and then stop working. Days on and days off. Back off again today.
I have the paid downloaded version.
Also if two projects are open, it jumps back and forth, one in front and then the other, about once a second.
Scrolling is also affected. Scroll down a long file list and it jumps back to the top in about 1 second, no matter what you do with the mouse.
Is there an update available?

Thanks for the link to that