X15 v 15.0.2 installed today, since then not able to edit text or preview pages 
Autore: Len K.I installed v 15.0.1 with a download from 7 March and began testing with one of my websites in this version.
Today I wanted to make a small change on one page, on start up I was advised of a new version available and allowed the installation to complete an update to v 15.0.2.
When the update was completed I opened my project and selected the first page in the sitemap. The page loaded as usual and I selected one text object on the page which I wanted to edit. The preview showed my text as usual, I double clicked on the text object to enter the text editor the editor started but the old text was not visible in the edit page. I also tried and found that I could not type any new text into the object.
Trying a few things quickly I found that the page preview also no longer works (I tried this on more than one page).
As this seemed to be a result of the update I deinstalled v 15 and then made a new installation from the download which I made on 7 March (15.0.1) and which had been working. However on reinstallation this version now behaves in the same way as 15.0.2. I take it that the deinstallation is not "total" but has left something modified behind.
Now I have no option but to return to v 14 for all projects (luckily I had only converted on project to test).
Any information on how to return to a clean v 15.0.1 which works (for me), or insite into the problem with today's update would be welcome as I would like to continue testing and continue to use the otherwise excellent product in the future.
Your installed version 15.0.1.from 07.03.was installed correctly.
The problem is not the program but the project!This is saved with the version 15.0.2 and stays that way.However, the project can not be opened with V15.0.1.For this one needs the same or a higher version.
I do not think that it was the fault of the update, but maybe a faulty installation of the update. I would download the current version in your profile and reinstall me and then press in the project once CTRL + preview and then test the text object.
Autore
I have now uninstalled x15 completely, cleaned up the PC (registry cleaner etc) restarted cleanly and installed from the current download. My problem is still there and it has nothing to do with the project as I have the same problem if I create a new project.
Text Objects cannot be edited, HTML objects cannot be edited. When the edit window appears there is no cursor; clicking in the edit window does nothing. Image objects and Form objects work fine.
If I import one of my old projects (I took a very simple test project this time), it is still the same. Text and HTML appears in the preview bottom right when the object is selected on the complete page display. When the object is opened to edit there is nothing on the edit page and no cursor in the edit box. Page preview also opens with nothing in the display. If I select a preview in another browser using the menu on the preview window: for example Chrome opens and displays an empty page with "about:blank" in the address bar.
This looks to me as if the Windows drivers are broken here! Microsoft NET Framework and Visual C ++ should be re-enabled or uninstalled and reinstalled. There are some tutorials in the German forum
Hi Len,
please install the followinf C++ and .Net Framework from the following links:
Visual C++
2010 - https://www.microsoft.com/en-us/download/details.aspx?id=5555
2012 - https://www.microsoft.com/en-us/download/details.aspx?id=30679
2013 - https://www.microsoft.com/en-us/download/details.aspx?id=40784
2015 - https://www.microsoft.com/en-us/download/details.aspx?id=48145
.Net Framework
https://www.microsoft.com/en-US/download/details.aspx?id=49982
Please also start the program as administrator.
Thanks, kind regards.
Autore
Thank you all for the suggestions, Windows has just downloaded and automatic update (22. März 2018 – KB4089848) and after that was installed and restarted it looks like all the problems on my other installation have gone away.
It must have been an unlucky hit that WebSite X5 had the only apparant serious error, possibly just that the latest WebSite installation came after whatever was mangled in the Windows installation.
Thank you all once again, this problem is now closed.