So, I suddenly found a lot of things to read once I knew what to look for, tried to revert to status before last windows update. Message appeared on screen after a good 30 minutes saying something in the line of "Couldn´t find files needed to perform the task" "Abort?" After confirming, the system rebooted. Sketchup is back to its normal behavior again. I guess this is the new "Normal"... Thanks for the help anyway.

I think this is what you need http://sketchucation.com/forums/viewtopic.php?t=13316

BugSplat reports do go directly to Trimble, but we don't personally contact each user who crashes - the reports are mostly used to pull out the "most common" issues. However, if you put a name or email address on the report, and then post in the SketchUp forum, I (or someone else) can look up the crash report and may be able to offer insight. Thanks, Marc

I'm glad you got it sorted. Get some sleep, now. Happy New Year to you, too.

There is some kind of "tolerance" in SU when first something seems to be on axis but later it turns out that it is not the case. There are endless discussions about such seemingly minor issues but eventually they can become really bothering. In the below file, there is a rectangle of 10m x 10m, edges set to display by axis. All is fine, the edges are red and green and if you PP the rectangle, the verticals will be blue, too despite one corner being just 0,05 mm higher than the others. There is not even an autofold line so SU definitely "adjusts" itself to such small differences. I have to say that these "games" ar most popular on the Beta Forums and SU has been working this way ever since I can remember but we "refresh" these topics every time there is a new version. Nilblo, never mind the critiques; these extreme, little things are that make discovering SU the most exciting thing (and also, plese, guys, be a bit more tolerant with others especially here in the Newbie Forum).