Ok TIG I will try it now. This fix the problem thank you ! Thank you for your time guys !

I am not changed nothing at all and I think that the mouse is ok because the same is happening when i tried use a touchpad.Another wired issue is that sometimes popup windows do not show before I click "alt".

@box said: Make sure you are deleting the correct ones and that you don't have a second plugin folder. The default location for SU2014 is C:\Users\YOURUSERNAME\AppData\Roaming\SketchUp\SketchUp 2014\SketchUp\Plugins Box, thank you. I didn't think to look in C:\Users\. I had only looked in the place where I installed the program and deleted the plugin, but it kept reappearing.

Thank you guys about advices I will try disable most non-used plugins and I will you keep informed with my crashes.

Your design is really good, design-wise (and subject to personal taste). And one thing is for sure, we all are looking forward to see refresh and modernization of some sorts. Interesting is how you realized the paradigms of the desktop (WIMP) with the design language of the Metro interface (that Microsoft originally targeted for different paradigms). Though there are some challenges, namely SketchUp is a multi-platform software and tries to use user interaction concepts that are shared by all supported (and future supported) operating systems. Symbolic or monochrome icons work well for a small repertoire of items but how do they work with huge amounts of icons (see John's studies)? Actually John's screenshot collection is a good point to start, what if we share mockups how we imagine SketchUp to become modern (again) and to develop in future? Maybe we have to raise the bar by creating attractive and convincing "images" to underline our list(s) of feature requests?

My little list of indispensables